{"id":31941,"date":"2025-09-28T10:01:08","date_gmt":"2025-09-28T03:01:08","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=31941"},"modified":"2025-10-03T09:36:30","modified_gmt":"2025-10-03T02:36:30","slug":"modem-la-gi","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/modem-la-gi\/","title":{"rendered":"Modem l\u00e0 g\u00ec? Ph\u00e2n lo\u1ea1i, T\u00ednh n\u0103ng, L\u1ee3i \u00edch &#038; Ph\u00e2n bi\u1ec7t vs Router"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed8I DUNG<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Modem-la-gi\" >Modem l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Phan-biet-Modem-thuong-va-Modem-Wifi\" >Ph\u00e2n bi\u1ec7t Modem th\u01b0\u1eddng v\u00e0 Modem Wifi<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Modem-thuong-hay-con-goi-la-modem-don-thuan\" >Modem th\u01b0\u1eddng (hay c\u00f2n g\u1ecdi l\u00e0 modem \u0111\u01a1n thu\u1ea7n)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Modem-Wi-Fi-hay-Modem-tich-hop-Router-Wi-Fi-Combo-Modem-Router\" >Modem Wi-Fi (hay Modem t\u00edch h\u1ee3p Router Wi-Fi \/ Combo Modem-Router)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Phan-loai-cac-Modem-pho-bien-hien-nay\" >Ph\u00e2n lo\u1ea1i c\u00e1c Modem ph\u1ed5 bi\u1ebfn hi\u1ec7n nay<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Theo-chuc-nang\" >Theo ch\u1ee9c n\u0103ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Theo-cach-thuc-truyen-dan\" >Theo c\u00e1ch th\u1ee9c truy\u1ec1n d\u1eabn<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Chuc-nang-chinh-cua-Modem-Dung-lam-gi\" >Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a Modem: D\u00f9ng l\u00e0m g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Chuyen-doi-tin-hieu\" >Chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Thiet-lap-ket-noi-Internet\" >Thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i Internet<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Cung-cap-dia-chi-IP\" >Cung c\u1ea5p \u0111\u1ecba ch\u1ec9 IP<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Modem-la-thiet-bi-vao-hay-ra\" >Modem l\u00e0 thi\u1ebft b\u1ecb v\u00e0o hay ra?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Router-va-Modem-khac-nhau-cho-nao\" >Router v\u00e0 Modem kh\u00e1c nhau ch\u1ed7 n\u00e0o?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Modem\" >Modem<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Router-Bo-dinh-tuyen\" >Router (B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Cac-thanh-phan-chinh-trong-modem\" >C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh trong modem<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Mot-so-loi-ich-va-han-che-cua-Modem\" >M\u1ed9t s\u1ed1 l\u1ee3i \u00edch v\u00e0 h\u1ea1n ch\u1ebf c\u1ee7a Modem<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Loi-ich-cua-Modem\" >L\u1ee3i \u00edch c\u1ee7a Modem<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Han-che-cua-Modem\" >H\u1ea1n ch\u1ebf c\u1ee7a Modem<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Khi-nao-dung-modem-Wifi\" >Khi n\u00e0o d\u00f9ng modem Wifi?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Mua-modem-wifi-o-dau\" >Mua modem wifi \u1edf \u0111\u00e2u?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#TOP-cac-Modem-wifi-manh-nhat-hien-nay-2025\" >TOP c\u00e1c Modem wifi m\u1ea1nh nh\u1ea5t hi\u1ec7n nay 2025<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Cach-kiem-tra-modem-truoc-khi-mua\" >C\u00e1ch ki\u1ec3m tra modem tr\u01b0\u1edbc khi mua<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Cach-khac-phuc-su-co-thuong-gap-voi-Modem\" >C\u00e1ch kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 th\u01b0\u1eddng g\u1eb7p v\u1edbi Modem<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Modem-khong-co-tin-hieumat-ket-noi\" >Modem kh\u00f4ng c\u00f3 t\u00edn hi\u1ec7u\/m\u1ea5t k\u1ebft n\u1ed1i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/#Toc-do-Internet-cham\" >T\u1ed1c \u0111\u1ed9 Internet ch\u1eadm<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p>Ng\u00e0y nay, vi\u1ec7c k\u1ebft n\u1ed1i Internet \u0111\u00e3 tr\u1edf th\u00e0nh nhu c\u1ea7u thi\u1ebft y\u1ebfu trong c\u1ea3 c\u00f4ng vi\u1ec7c l\u1eabn cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y. V\u00e0 \u0111\u1ec3 k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c v\u1edbi m\u1ea1ng Internet, modem ch\u00ednh l\u00e0 thi\u1ebft b\u1ecb \u0111\u00f3ng vai tr\u00f2 trung gian quan tr\u1ecdng gi\u1eefa b\u1ea1n v\u00e0 th\u1ebf gi\u1edbi tr\u1ef1c tuy\u1ebfn. InterData s\u1ebd gi\u00fap b\u1ea1n t\u00ecm hi\u1ec3u kh\u00e1i ni\u1ec7m <a href=\"https:\/\/interdata.vn\/blog\/modem-la-gi\/\"><strong>modem\u00a0l\u00e0 g\u00ec<\/strong><\/a>, c\u00f3 <strong>ch\u1ee9c n\u0103ng<\/strong> nh\u01b0 th\u1ebf n\u00e0o v\u00e0 <strong>g\u1ed3m nh\u1eefng lo\u1ea1i modem Wifi n\u00e0o<\/strong>? <strong>G\u1ee3i \u00fd mua<\/strong>. C\u00f9ng InterData t\u00ecm hi\u1ec3u qua b\u00e0i vi\u1ebft sau.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Modem-la-gi\"><\/span>Modem l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Modem l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a Modulator-Demodulator, t\u1ee9c b\u1ed9 \u0111i\u1ec1u ch\u1ebf v\u00e0 gi\u1ea3i \u0111i\u1ec1u ch\u1ebf<\/strong>, l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng c\u00f3 nhi\u1ec7m v\u1ee5 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u s\u1ed1 (digital) t\u1eeb m\u00e1y t\u00ednh th\u00e0nh t\u00edn hi\u1ec7u t\u01b0\u01a1ng t\u1ef1 (analog) \u0111\u1ec3 truy\u1ec1n qua \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tho\u1ea1i ho\u1eb7c c\u00e1p \u2013 qu\u00e1 tr\u00ecnh n\u00e0y g\u1ecdi l\u00e0 \u0111i\u1ec1u ch\u1ebf (modulation).<\/p>\n<p>Ng\u01b0\u1ee3c l\u1ea1i, khi t\u00edn hi\u1ec7u t\u1eeb Internet \u0111\u01b0\u1ee3c g\u1eedi v\u1ec1, modem s\u1ebd chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u t\u01b0\u01a1ng t\u1ef1 th\u00e0nh t\u00edn hi\u1ec7u s\u1ed1 \u0111\u1ec3 thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i c\u00f3 th\u1ec3 hi\u1ec3u v\u00e0 x\u1eed l\u00fd \u2013 qu\u00e1 tr\u00ecnh n\u00e0y g\u1ecdi l\u00e0 gi\u1ea3i \u0111i\u1ec1u ch\u1ebf (demodulation).<\/p>\n<figure id=\"attachment_31942\" aria-describedby=\"caption-attachment-31942\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31942\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Modem-la-gi.jpg\" alt=\"Modem l\u00e0 g\u00ec?\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Modem-la-gi.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Modem-la-gi-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Modem-la-gi-768x480.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Modem-la-gi-750x469.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-31942\" class=\"wp-caption-text\">Modem l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<p>N\u00f3i c\u00e1ch kh\u00e1c, modem l\u00e0 thi\u1ebft b\u1ecb l\u00e0m \u201cc\u1ea7u n\u1ed1i\u201d gi\u1eefa m\u1ea1ng Internet b\u00ean ngo\u00e0i v\u00e0 c\u00e1c thi\u1ebft b\u1ecb trong gia \u0111\u00ecnh ho\u1eb7c doanh nghi\u1ec7p, gi\u00fap b\u1ea1n truy c\u1eadp v\u00e0 s\u1eed d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn nh\u01b0 l\u01b0\u1edbt web, xem video, g\u1ecdi \u0111i\u1ec7n, l\u00e0m vi\u1ec7c t\u1eeb xa,\u2026<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Phan-biet-Modem-thuong-va-Modem-Wifi\"><\/span>Ph\u00e2n bi\u1ec7t Modem th\u01b0\u1eddng v\u00e0 Modem Wifi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Khi n\u00f3i v\u1ec1 modem, nhi\u1ec1u ng\u01b0\u1eddi th\u01b0\u1eddng b\u0103n kho\u0103n v\u1ec1 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa &#8220;modem th\u01b0\u1eddng&#8221; v\u00e0 &#8220;modem Wi-Fi&#8221;. Th\u1ef1c ch\u1ea5t, s\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh n\u1eb1m \u1edf kh\u1ea3 n\u0103ng ph\u00e1t s\u00f3ng Wi-Fi.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Modem-thuong-hay-con-goi-la-modem-don-thuan\"><\/span>Modem th\u01b0\u1eddng (hay c\u00f2n g\u1ecdi l\u00e0 modem \u0111\u01a1n thu\u1ea7n)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Lo\u1ea1i modem th\u01b0\u1eddng ch\u1ec9 th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n l\u00e0 \u0111i\u1ec1u ch\u1ebf v\u00e0 gi\u1ea3i \u0111i\u1ec1u ch\u1ebf t\u00edn hi\u1ec7u, n\u00f3 c\u00f3 m\u1ed9t ho\u1eb7c m\u1ed9t v\u00e0i c\u1ed5ng Ethernet (LAN) \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp b\u1eb1ng d\u00e2y c\u00e1p v\u1edbi m\u1ed9t m\u00e1y t\u00ednh ho\u1eb7c m\u1ed9t thi\u1ebft b\u1ecb \u0111\u1ecbnh tuy\u1ebfn (<a href=\"https:\/\/interdata.vn\/blog\/router-la-gi\/\">router<\/a>) ri\u00eang bi\u1ec7t.<\/p>\n<p>Modem n\u00e0y kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1t s\u00f3ng Wi-Fi \u0111\u1ec3 c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng d\u00e2y nh\u01b0 \u0111i\u1ec7n tho\u1ea1i, laptop c\u00f3 th\u1ec3 truy c\u1eadp Internet.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Modem-Wi-Fi-hay-Modem-tich-hop-Router-Wi-Fi-Combo-Modem-Router\"><\/span>Modem Wi-Fi (hay Modem t\u00edch h\u1ee3p Router Wi-Fi \/ Combo Modem-Router)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Modem Wi-Fi l\u00e0 lo\u1ea1i ph\u1ed5 bi\u1ebfn h\u01a1n r\u1ea5t nhi\u1ec1u trong c\u00e1c h\u1ed9 gia \u0111\u00ecnh v\u00e0 v\u0103n ph\u00f2ng nh\u1ecf hi\u1ec7n nay. Ngo\u00e0i ch\u1ee9c n\u0103ng \u0111i\u1ec1u ch\u1ebf v\u00e0 gi\u1ea3i \u0111i\u1ec1u ch\u1ebf t\u00edn hi\u1ec7u gi\u1ed1ng nh\u01b0 modem th\u01b0\u1eddng, n\u00f3 c\u00f2n \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p th\u00eam m\u1ed9t b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn (router) v\u00e0 kh\u1ea3 n\u0103ng ph\u00e1t s\u00f3ng Wi-Fi,\u00a0c\u00f3 ngh\u0129a l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb duy nh\u1ea5t c\u00f3 th\u1ec3 v\u1eeba chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u internet, v\u1eeba t\u1ea1o ra m\u1ea1ng Wi-Fi kh\u00f4ng d\u00e2y \u0111\u1ec3 nhi\u1ec1u thi\u1ebft b\u1ecb c\u00f9ng l\u00fac c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i Internet m\u00e0 kh\u00f4ng c\u1ea7n d\u00e2y c\u00e1p.<\/p>\n<p>V\u1eady, s\u1ef1 kh\u00e1c bi\u1ec7t c\u01a1 b\u1ea3n l\u00e0 c\u1ee5c Modem th\u01b0\u1eddng ch\u1ec9 lo ph\u1ea7n &#8220;giao ti\u1ebfp&#8221; v\u1edbi ISP, c\u00f2n modem Wi-Fi l\u00e0m c\u1ea3 hai vi\u1ec7c: giao ti\u1ebfp v\u1edbi ISP v\u00e0 ph\u00e2n ph\u1ed1i internet kh\u00f4ng d\u00e2y trong nh\u00e0\/v\u0103n ph\u00f2ng c\u1ee7a b\u1ea1n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Phan-loai-cac-Modem-pho-bien-hien-nay\"><\/span>Ph\u00e2n lo\u1ea1i c\u00e1c Modem ph\u1ed5 bi\u1ebfn hi\u1ec7n nay<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Khi t\u00ecm hi\u1ec3u v\u1ec1 Modem, h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u c\u00e1c lo\u1ea1i Modem m\u00e1y t\u00ednh l\u00e0 g\u00ec. C\u00e1c lo\u1ea1i modem \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean nhi\u1ec1u ti\u00eau ch\u00ed kh\u00e1c nhau, ch\u1ee7 y\u1ebfu l\u00e0 theo ch\u1ee9c n\u0103ng v\u00e0 c\u00e1ch th\u1ee9c truy\u1ec1n d\u1eabn t\u00edn hi\u1ec7u.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Theo-chuc-nang\"><\/span>Theo ch\u1ee9c n\u0103ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ph\u00e2n lo\u1ea1i theo ch\u1ee9c n\u0103ng gi\u00fap ch\u00fang ta hi\u1ec3u modem \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o trong m\u1ed9t h\u1ec7 th\u1ed1ng.<\/p>\n<h4>Modem g\u1eafn ngo\u00e0i (External Modem)<\/h4>\n<p><strong>Modem g\u1eafn ngo\u00e0i<\/strong> l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb \u0111\u1ed9c l\u1eadp, c\u00f3 v\u1ecf b\u1ecdc ri\u00eang v\u00e0 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u00e1y t\u00ednh ho\u1eb7c router th\u00f4ng qua c\u1ed5ng USB ho\u1eb7c c\u1ed5ng Ethernet, lo\u1ea1i n\u00e0y th\u01b0\u1eddng c\u00f3 \u0111\u00e8n b\u00e1o t\u00edn hi\u1ec7u gi\u00fap ng\u01b0\u1eddi d\u00f9ng d\u1ec5 d\u00e0ng theo d\u00f5i tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<p>\u01afu \u0111i\u1ec3m c\u1ee7a modem g\u1eafn ngo\u00e0i l\u00e0 d\u1ec5 d\u00e0ng n\u00e2ng c\u1ea5p ho\u1eb7c thay th\u1ebf khi c\u1ea7n, v\u00e0 ch\u00fang th\u01b0\u1eddng c\u00f3 hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh do c\u00f3 h\u1ec7 th\u1ed1ng t\u1ea3n nhi\u1ec7t ri\u00eang. V\u00ed d\u1ee5, m\u1ed9t modem c\u00e1p quang (ONT) m\u00e0 c\u00e1c nh\u00e0 m\u1ea1ng cung c\u1ea5p cho kh\u00e1ch h\u00e0ng th\u01b0\u1eddng l\u00e0 lo\u1ea1i g\u1eafn ngo\u00e0i.<\/p>\n<h4>Modem t\u00edch h\u1ee3p, g\u1eafn trong (Integrated Modem)<\/h4>\n<p><strong>Modem t\u00edch h\u1ee3p, g\u1eafn trong<\/strong> l\u00e0 lo\u1ea1i modem \u0111\u01b0\u1ee3c g\u1eafn tr\u1ef1c ti\u1ebfp v\u00e0o b\u1ea3ng m\u1ea1ch ch\u1ee7 c\u1ee7a thi\u1ebft b\u1ecb, nh\u01b0 m\u1ed9t b\u1ed9 ph\u1eadn c\u1ee7a m\u00e1y t\u00ednh (v\u00ed d\u1ee5: card modem g\u1eafn trong c\u00e1c m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n \u0111\u1eddi c\u0169 ho\u1eb7c laptop).<\/p>\n<p>\u01afu \u0111i\u1ec3m c\u1ee7a lo\u1ea1i Modem t\u00edch h\u1ee3p l\u00e0 ti\u1ebft ki\u1ec7m kh\u00f4ng gian v\u00e0 kh\u00f4ng c\u1ea7n d\u00e2y c\u00e1p ph\u1ee5, nh\u01b0ng vi\u1ec7c n\u00e2ng c\u1ea5p ho\u1eb7c thay th\u1ebf s\u1ebd ph\u1ee9c t\u1ea1p h\u01a1n nhi\u1ec1u so v\u1edbi modem g\u1eafn ngo\u00e0i. Ng\u00e0y nay, lo\u1ea1i modem\u00a0g\u1eafn trong r\u1ea5t l\u1ed7i th\u1eddi v\u00e0 hi\u1ebfm g\u1eb7p hi\u1ec7n nay.<\/p>\n<h4>Modem k\u1ebft h\u1ee3p v\u1edbi Router (Router\/Modem Combo)<\/h4>\n<p><strong>Modem k\u1ebft h\u1ee3p v\u1edbi Router<\/strong> (hay Router\/Modem Combo) l\u00e0 thi\u1ebft b\u1ecb t\u00edch h\u1ee3p c\u1ea3 hai ch\u1ee9c n\u0103ng c\u1ee7a modem v\u00e0 router trong m\u1ed9t v\u1ecf b\u1ecdc duy nh\u1ea5t, \u0111\u00e2y l\u00e0\u00a0l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn nh\u1ea5t cho ng\u01b0\u1eddi d\u00f9ng gia \u0111\u00ecnh v\u00e0 v\u0103n ph\u00f2ng nh\u1ecf v\u00ec s\u1ef1 ti\u1ec7n l\u1ee3i, gi\u00fap gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng thi\u1ebft b\u1ecb c\u1ea7n c\u00f3 v\u00e0 d\u00e2y c\u00e1p r\u01b0\u1eddm r\u00e0.<\/p>\n<p>H\u1ea7u h\u1ebft c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP) \u0111\u1ec1u cung c\u1ea5p lo\u1ea1i thi\u1ebft b\u1ecb n\u00e0y cho kh\u00e1ch h\u00e0ng c\u1ee7a h\u1ecd.<\/p>\n<figure id=\"attachment_31943\" aria-describedby=\"caption-attachment-31943\" style=\"width: 910px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31943\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Cac-loai-Modem-pho-bien-hien-nay.webp\" alt=\"C\u00e1c lo\u1ea1i Modem ph\u1ed5 bi\u1ebfn hi\u1ec7n nay\" width=\"910\" height=\"673\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Cac-loai-Modem-pho-bien-hien-nay.webp 910w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Cac-loai-Modem-pho-bien-hien-nay-300x222.webp 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Cac-loai-Modem-pho-bien-hien-nay-768x568.webp 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Cac-loai-Modem-pho-bien-hien-nay-750x555.webp 750w\" sizes=\"auto, (max-width: 910px) 100vw, 910px\" \/><figcaption id=\"caption-attachment-31943\" class=\"wp-caption-text\">C\u00e1c lo\u1ea1i Modem ph\u1ed5 bi\u1ebfn hi\u1ec7n nay<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Theo-cach-thuc-truyen-dan\"><\/span>Theo c\u00e1ch th\u1ee9c truy\u1ec1n d\u1eabn<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1ch th\u1ee9c truy\u1ec1n d\u1eabn l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t quy\u1ebft \u0111\u1ecbnh lo\u1ea1i modem b\u1ea1n s\u1ebd s\u1eed d\u1ee5ng, v\u00ec n\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o h\u1ea1 t\u1ea7ng m\u1ea1ng c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5.<\/p>\n<h4>Modem thu\u00ea bao s\u1ed1 (Modem DSL)<\/h4>\n<p><strong>Modem DSL (Digital Subscriber Line)<\/strong> s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tho\u1ea1i \u0111\u1ed3ng hi\u1ec7n c\u00f3 \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao. C\u00e1c bi\u1ebfn th\u1ec3 ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 <strong>ADSL (Asymmetric Digital Subscriber Line)<\/strong> v\u00e0 <strong>VDSL (Very-high-bit-rate Digital Subscriber Line)<\/strong>.<\/p>\n<p>ADSL cung c\u1ea5p t\u1ed1c \u0111\u1ed9 t\u1ea3i xu\u1ed1ng nhanh h\u01a1n t\u1ed1c \u0111\u1ed9 t\u1ea3i l\u00ean, ph\u00f9 h\u1ee3p cho vi\u1ec7c duy\u1ec7t web v\u00e0 xem phim. VDSL l\u00e0 phi\u00ean b\u1ea3n n\u00e2ng c\u1ea5p c\u1ee7a ADSL, cung c\u1ea5p t\u1ed1c \u0111\u1ed9 cao h\u01a1n \u0111\u00e1ng k\u1ec3, \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c d\u1ecbch v\u1ee5 \u0111\u00f2i h\u1ecfi <a href=\"https:\/\/interdata.vn\/blog\/bang-thong-la-gi\/\">b\u0103ng th\u00f4ng<\/a> l\u1edbn nh\u01b0 truy\u1ec1n h\u00ecnh IPTV ho\u1eb7c c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00e1m m\u00e2y.<\/p>\n<p>V\u00ed d\u1ee5, n\u1ebfu nh\u00e0 b\u1ea1n \u0111ang d\u00f9ng \u0111\u01b0\u1eddng \u0111i\u1ec7n tho\u1ea1i c\u0169 \u0111\u1ec3 k\u1ebft n\u1ed1i Internet, kh\u1ea3 n\u0103ng cao b\u1ea1n \u0111ang s\u1eed d\u1ee5ng modem DSL.<\/p>\n<h4>Modem quay s\u1ed1 (Modem Dial-up)<\/h4>\n<p><strong>Modem quay s\u1ed1<\/strong> (hay c\u00f2n g\u1ecdi l\u00e0 Modem Dial-up) ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean ph\u01b0\u01a1ng th\u1ee9c k\u1ebft n\u1ed1i b\u1eb1ng c\u00e1ch quay s\u1ed1 qua \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tho\u1ea1i. C\u1ee5 th\u1ec3, thi\u1ebft b\u1ecb n\u00e0y s\u1ebd ti\u1ebfp nh\u1eadn d\u1eef li\u1ec7u s\u1ed1 t\u1eeb m\u00e1y t\u00ednh, sau \u0111\u00f3 bi\u1ebfn \u0111\u1ed5i ch\u00fang th\u00e0nh t\u00edn hi\u1ec7u \u00e2m thanh \u0111\u1ec3 truy\u1ec1n t\u1edbi m\u1ed9t modem kh\u00e1c \u1edf \u0111\u1ea7u b\u00ean kia.<\/p>\n<p>Modem nh\u1eadn s\u1ebd ti\u1ebfp t\u1ee5c gi\u1ea3i m\u00e3 c\u00e1c t\u00edn hi\u1ec7u \u00e2m thanh n\u00e0y \u2013 v\u1ed1n b\u1ecb nhi\u1ec5u v\u00e0 bi\u1ebfn d\u1ea1ng do \u0111\u01b0\u1eddng truy\u1ec1n t\u01b0\u01a1ng t\u1ef1 \u2013 \u0111\u1ec3 kh\u00f4i ph\u1ee5c l\u1ea1i d\u1eef li\u1ec7u s\u1ed1 ban \u0111\u1ea7u, t\u1eeb \u0111\u00f3 m\u00e1y t\u00ednh c\u00f3 th\u1ec3 hi\u1ec3u v\u00e0 x\u1eed l\u00fd.<\/p>\n<p>Ng\u00e0y nay, lo\u1ea1i modem n\u00e0y g\u1ea7n nh\u01b0 kh\u00f4ng c\u00f2n ph\u1ed5 bi\u1ebfn v\u00e0 hi\u1ebfm khi xu\u1ea5t hi\u1ec7n tr\u00ean th\u1ecb tr\u01b0\u1eddng.<\/p>\n<h4>Modem c\u00e1p quang (Fiber Optic Modem)<\/h4>\n<p><strong>Modem c\u00e1p quang (Fiber Optic Modem)<\/strong>, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <strong>ONT (Optical Network Terminal)<\/strong> ho\u1eb7c <strong>ONU (Optical Network Unit)<\/strong>, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1ng c\u00e1p quang \u0111\u1ebfn t\u1eadn nh\u00e0 (FTTH &#8211; Fiber To The Home).<\/p>\n<p>\u0110\u00e2y l\u00e0 c\u00f4ng ngh\u1ec7 truy\u1ec1n d\u1eabn hi\u1ec7n \u0111\u1ea1i nh\u1ea5t, s\u1eed d\u1ee5ng t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng qua s\u1ee3i c\u00e1p quang \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 Internet c\u1ef1c cao, l\u00ean \u0111\u1ebfn h\u00e0ng tr\u0103m Mbps ho\u1eb7c th\u1eadm ch\u00ed Gbps. Modem c\u00e1p quang chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng n\u00e0y th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n m\u00e0 c\u00e1c thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng.<\/p>\n<p>V\u00ed d\u1ee5, khi b\u1ea1n \u0111\u0103ng k\u00fd g\u00f3i Internet t\u1ed1c \u0111\u1ed9 cao c\u1ee7a Viettel hay FPT, b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c trang b\u1ecb m\u1ed9t chi\u1ebfc ONT.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Chuc-nang-chinh-cua-Modem-Dung-lam-gi\"><\/span>Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a Modem: D\u00f9ng l\u00e0m g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Modem d\u00f9ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/strong> Modem c\u00f3 nhi\u1ec7m v\u1ee5 g\u00ec? Modem \u0111\u00f3ng vai tr\u00f2 trung t\u00e2m trong vi\u1ec7c thi\u1ebft l\u1eadp v\u00e0 duy tr\u00ec k\u1ebft n\u1ed1i Internet c\u1ee7a b\u1ea1n. InterData s\u1ebd cho bi\u1ebft ch\u1ee9c n\u0103ng c\u1ee7a modem ngay sau \u0111\u00e2y:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Chuyen-doi-tin-hieu\"><\/span>Chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i v\u00e0 quan tr\u1ecdng nh\u1ea5t c\u1ee7a modem. Nh\u01b0 t\u00ean g\u1ecdi (Modulator-Demodulator), n\u00f3 ch\u1ecbu tr\u00e1ch nhi\u1ec7m \u0111i\u1ec1u ch\u1ebf t\u00edn hi\u1ec7u s\u1ed1 th\u00e0nh analog \u0111\u1ec3 truy\u1ec1n \u0111i v\u00e0 gi\u1ea3i \u0111i\u1ec1u ch\u1ebf t\u00edn hi\u1ec7u analog th\u00e0nh s\u1ed1 khi nh\u1eadn v\u1ec1. Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 \u0111i qua c\u00e1c lo\u1ea1i \u0111\u01b0\u1eddng truy\u1ec1n kh\u00e1c nhau.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thiet-lap-ket-noi-Internet\"><\/span>Thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i Internet<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Modem m\u00e1y t\u00ednh thi\u1ebft l\u1eadp v\u00e0 duy tr\u00ec k\u1ebft n\u1ed1i v\u1eadt l\u00fd c\u0169ng nh\u01b0 logic v\u1edbi nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP). N\u00f3 &#8220;b\u1eaft tay&#8221; v\u1edbi thi\u1ebft b\u1ecb c\u1ee7a ISP \u1edf \u0111\u1ea7u kia c\u1ee7a \u0111\u01b0\u1eddng truy\u1ec1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c th\u00f4ng s\u1ed1 k\u1ebft n\u1ed1i, \u0111\u1ea3m b\u1ea3o m\u1ed9t k\u00eanh truy\u1ec1n th\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0 an to\u00e0n cho d\u1eef li\u1ec7u.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cung-cap-dia-chi-IP\"><\/span>Cung c\u1ea5p \u0111\u1ecba ch\u1ec9 IP<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, modem s\u1ebd nh\u1eadn m\u1ed9t <a href=\"https:\/\/interdata.vn\/blog\/dia-chi-ip-la-gi\/\">\u0111\u1ecba ch\u1ec9 IP<\/a> c\u00f4ng c\u1ed9ng (Public IP Address) t\u1eeb ISP v\u00e0 chuy\u1ec3n ti\u1ebfp n\u00f3 \u0111\u1ebfn thi\u1ebft b\u1ecb \u0111\u1ecbnh tuy\u1ebfn (router) ho\u1eb7c m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 giao ti\u1ebfp v\u1edbi c\u00e1c <a href=\"https:\/\/interdata.vn\/blog\/may-chu-server-la-gi\/\">m\u00e1y ch\u1ee7<\/a> v\u00e0 thi\u1ebft b\u1ecb kh\u00e1c tr\u00ean Internet.<\/p>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c modem t\u00edch h\u1ee3p router, ch\u00fang c\u00f2n c\u00f3 th\u00eam c\u00e1c t\u00ednh n\u0103ng nh\u01b0:<\/p>\n<ul>\n<li><strong>Ph\u00e1t s\u00f3ng Wi-Fi:<\/strong> T\u1ea1o m\u1ea1ng kh\u00f4ng d\u00e2y c\u1ee5c b\u1ed9 (WLAN).<\/li>\n<li><strong>C\u1ea5p ph\u00e1t \u0111\u1ecba ch\u1ec9 IP n\u1ed9i b\u1ed9 (<a href=\"https:\/\/interdata.vn\/blog\/dhcp-la-gi\/\">DHCP<\/a>):<\/strong> G\u00e1n \u0111\u1ecba ch\u1ec9 IP cho c\u00e1c thi\u1ebft b\u1ecb trong m\u1ea1ng gia \u0111\u00ecnh.<\/li>\n<li><strong>T\u01b0\u1eddng l\u1eeda c\u01a1 b\u1ea3n:<\/strong> B\u1ea3o v\u1ec7 m\u1ea1ng kh\u1ecfi m\u1ed9t s\u1ed1 m\u1ed1i \u0111e d\u1ecda t\u1eeb b\u00ean ngo\u00e0i.<\/li>\n<li><strong>Qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng d\u1ecbch v\u1ee5 (QoS):<\/strong> \u01afu ti\u00ean b\u0103ng th\u00f4ng cho c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Modem-la-thiet-bi-vao-hay-ra\"><\/span>Modem l\u00e0 thi\u1ebft b\u1ecb v\u00e0o hay ra?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Modem l\u00e0 thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i t\u00edn hi\u1ec7u Internet t\u1eeb nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 (ISP) v\u00e0o m\u1ea1ng n\u1ed9i b\u1ed9 c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. N\u00f3i c\u00e1ch kh\u00e1c, modem nh\u1eadn t\u00edn hi\u1ec7u Internet t\u1eeb b\u00ean ngo\u00e0i (d\u00e2y c\u00e1p, \u0111\u01b0\u1eddng truy\u1ec1n) v\u00e0 chuy\u1ec3n \u0111\u1ed5i sang d\u1ea1ng m\u00e0 c\u00e1c thi\u1ebft b\u1ecb trong nh\u00e0 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c.<\/p>\n<p>V\u00ec v\u1eady, modem l\u00e0 thi\u1ebft b\u1ecb v\u00e0o (nh\u1eadn t\u00edn hi\u1ec7u Internet t\u1eeb nh\u00e0 cung c\u1ea5p) ch\u1ee9 kh\u00f4ng ph\u1ea3i thi\u1ebft b\u1ecb ra.<\/p>\n<p><strong>Gi\u1ea3i th\u00edch th\u00eam:<\/strong><\/p>\n<ul>\n<li>Modem nh\u1eadn t\u00edn hi\u1ec7u Internet t\u1eeb b\u00ean ngo\u00e0i v\u00e0o (t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o).<\/li>\n<li>Sau \u0111\u00f3 truy\u1ec1n t\u00edn hi\u1ec7u \u0111\u00e3 gi\u1ea3i m\u00e3 sang c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng n\u1ed9i b\u1ed9 nh\u01b0 router, m\u00e1y t\u00ednh (\u0111\u1ea7u ra n\u1ed9i b\u1ed9).<\/li>\n<li>Thi\u1ebft b\u1ecb router s\u1ebd qu\u1ea3n l\u00fd vi\u1ec7c ph\u00e1t t\u00edn hi\u1ec7u ra c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c qua Wi-Fi ho\u1eb7c c\u00e1p m\u1ea1ng.<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, modem l\u00e0 thi\u1ebft b\u1ecb thi\u1ebft l\u1eadp \u0111\u1ea7u v\u00e0o t\u00edn hi\u1ec7u Internet t\u1eeb nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 m\u1ea1ng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Router-va-Modem-khac-nhau-cho-nao\"><\/span>Router v\u00e0 Modem kh\u00e1c nhau ch\u1ed7 n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nhi\u1ec1u ng\u01b0\u1eddi th\u01b0\u1eddng nh\u1ea7m l\u1eabn ho\u1eb7c d\u00f9ng l\u1eabn l\u1ed9n c\u00e1c thu\u1eadt ng\u1eef &#8220;modem&#8221; v\u00e0 &#8220;router&#8221;. M\u1eb7c d\u00f9 th\u01b0\u1eddng \u0111i \u0111\u00f4i v\u1edbi nhau v\u00e0 \u0111\u00f4i khi \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p trong m\u1ed9t thi\u1ebft b\u1ecb, modem v\u00e0 router c\u00f3 hai vai tr\u00f2 kh\u00e1c nhau r\u00f5 r\u1ec7t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Modem\"><\/span>Modem<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Ch\u1ee9c n\u0103ng ch\u00ednh:<\/strong> C\u1ee5c Modem l\u00e0 c\u1ea7u n\u1ed1i gi\u1eefa m\u1ea1ng n\u1ed9i b\u1ed9 c\u1ee7a b\u1ea1n v\u00e0 Internet. N\u00f3 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u t\u1eeb ISP sang \u0111\u1ecbnh d\u1ea1ng m\u00e0 thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3u v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/li>\n<li><strong>Nhi\u1ec7m v\u1ee5:<\/strong> \u0110i\u1ec1u ch\u1ebf v\u00e0 gi\u1ea3i \u0111i\u1ec1u ch\u1ebf t\u00edn hi\u1ec7u. N\u00f3 &#8220;th\u00f4ng d\u1ecbch&#8221; ng\u00f4n ng\u1eef c\u1ee7a ISP.<\/li>\n<li><strong>K\u1ebft n\u1ed1i:<\/strong> Th\u01b0\u1eddng k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi \u0111\u01b0\u1eddng d\u00e2y Internet t\u1eeb nh\u00e0 cung c\u1ea5p (c\u00e1p \u0111\u1ed3ng tr\u1ee5c, c\u00e1p \u0111i\u1ec7n tho\u1ea1i, c\u00e1p quang) v\u00e0 ch\u1ec9 cung c\u1ea5p m\u1ed9t ho\u1eb7c m\u1ed9t v\u00e0i c\u1ed5ng Ethernet \u0111\u1ec3 k\u1ebft n\u1ed1i v\u1edbi m\u1ed9t thi\u1ebft b\u1ecb duy nh\u1ea5t (th\u01b0\u1eddng l\u00e0 router).<\/li>\n<li><strong>\u0110\u1ecba ch\u1ec9 IP:<\/strong> Nh\u1eadn m\u1ed9t \u0111\u1ecba ch\u1ec9 IP c\u00f4ng c\u1ed9ng t\u1eeb ISP.<\/li>\n<\/ul>\n<figure id=\"attachment_31944\" aria-describedby=\"caption-attachment-31944\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31944\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Phan-biet-giua-Modem-voi-Router.jpg\" alt=\"Ph\u00e2n bi\u1ec7t gi\u1eefa Modem v\u1edbi Router\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Phan-biet-giua-Modem-voi-Router.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Phan-biet-giua-Modem-voi-Router-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Phan-biet-giua-Modem-voi-Router-768x480.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Phan-biet-giua-Modem-voi-Router-750x469.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-31944\" class=\"wp-caption-text\">Ph\u00e2n bi\u1ec7t gi\u1eefa Modem v\u1edbi Router<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Router-Bo-dinh-tuyen\"><\/span>Router (B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Ch\u1ee9c n\u0103ng ch\u00ednh:<\/strong> T\u1ea1o ra m\u1ed9t m\u1ea1ng c\u1ee5c b\u1ed9 (LAN) cho c\u00e1c thi\u1ebft b\u1ecb trong nh\u00e0 ho\u1eb7c v\u0103n ph\u00f2ng c\u1ee7a b\u1ea1n v\u00e0 qu\u1ea3n l\u00fd l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb n\u00e0y, c\u0169ng nh\u01b0 gi\u1eefa <a href=\"https:\/\/interdata.vn\/blog\/mang-lan\/\">m\u1ea1ng LAN<\/a> v\u00e0 Internet (th\u00f4ng qua modem).<\/li>\n<li><strong>Nhi\u1ec7m v\u1ee5:<\/strong> \u0110\u1ecbnh tuy\u1ebfn g\u00f3i d\u1eef li\u1ec7u, c\u1ea5p ph\u00e1t \u0111\u1ecba ch\u1ec9 IP n\u1ed9i b\u1ed9 cho c\u00e1c thi\u1ebft b\u1ecb (DHCP), b\u1ea3o m\u1eadt m\u1ea1ng (t\u01b0\u1eddng l\u1eeda), v\u00e0 ph\u00e1t s\u00f3ng Wi-Fi (n\u1ebfu l\u00e0 router kh\u00f4ng d\u00e2y).<\/li>\n<li><strong>K\u1ebft n\u1ed1i:<\/strong> K\u1ebft n\u1ed1i v\u1edbi modem qua m\u1ed9t c\u1ed5ng WAN (Wide Area Network) v\u00e0 c\u00f3 nhi\u1ec1u c\u1ed5ng LAN \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00f3 d\u00e2y v\u1edbi c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c, ho\u1eb7c ph\u00e1t Wi-Fi cho c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng d\u00e2y.<\/li>\n<li><strong>\u0110\u1ecba ch\u1ec9 IP:<\/strong> Nh\u1eadn m\u1ed9t \u0111\u1ecba ch\u1ec9 IP c\u00f4ng c\u1ed9ng t\u1eeb modem (ho\u1eb7c tr\u1ef1c ti\u1ebfp t\u1eeb ISP n\u1ebfu l\u00e0 modem-router combo) v\u00e0 c\u1ea5p ph\u00e1t c\u00e1c \u0111\u1ecba ch\u1ec9 IP ri\u00eang t\u01b0 cho c\u00e1c thi\u1ebft b\u1ecb trong m\u1ea1ng LAN c\u1ee7a b\u1ea1n.<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, <strong>modem k\u1ebft n\u1ed1i b\u1ea1n v\u1edbi Internet<\/strong>, c\u00f2n <strong>router k\u1ebft n\u1ed1i nhi\u1ec1u thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n v\u1edbi modem (v\u00e0 do \u0111\u00f3 l\u00e0 Internet)<\/strong>. B\u1ea1n c\u00f3 th\u1ec3 c\u00f3 modem m\u00e0 kh\u00f4ng c\u00f3 router (ch\u1ec9 m\u1ed9t thi\u1ebft b\u1ecb c\u00f3 d\u00e2y truy c\u1eadp Internet), nh\u01b0ng b\u1ea1n kh\u00f4ng th\u1ec3 c\u00f3 router m\u00e0 kh\u00f4ng c\u00f3 modem (tr\u1eeb khi router \u0111\u00f3 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a modem combo) n\u1ebfu mu\u1ed1n truy c\u1eadp Internet c\u00f4ng c\u1ed9ng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac-thanh-phan-chinh-trong-modem\"><\/span>C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh trong modem<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>M\u1ed9t chi\u1ebfc modem c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb hai ph\u1ea7n ch\u00ednh: b\u1ed9 \u0111i\u1ec1u ch\u1ebf v\u00e0 b\u1ed9 gi\u1ea3i \u0111i\u1ec1u ch\u1ebf t\u00edn hi\u1ec7u. Ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i c\u1ee7a modem l\u00e0 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u s\u1ed1 th\u00e0nh t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 truy\u1ec1n qua \u0111\u01b0\u1eddng d\u00e2y v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, t\u1eeb \u0111\u00f3 gi\u00fap d\u1eef li\u1ec7u truy\u1ec1n \u0111i xa m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<p>Modem \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u1ea7u n\u1ed1i trung gian kh\u00f4ng th\u1ec3 thi\u1ebfu khi truy c\u1eadp Internet. Thi\u1ebft b\u1ecb n\u00e0y c\u00f3 c\u1ea5u t\u1ea1o bao g\u1ed3m nhi\u1ec1u b\u1ed9 ph\u1eadn, m\u1ed7i ph\u1ea7n \u0111\u1ea3m nh\u1eadn m\u1ed9t nhi\u1ec7m v\u1ee5 c\u1ee5 th\u1ec3:<\/p>\n<ul>\n<li><strong>Ngu\u1ed3n \u0111i\u1ec7n (c\u1ee5c ngu\u1ed3n):<\/strong> L\u00e0 n\u01a1i cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho to\u00e0n b\u1ed9 modem ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh.<\/li>\n<li><strong>IC x\u1eed l\u00fd t\u00edn hi\u1ec7u:<\/strong> \u0110\u00e2y \u0111\u01b0\u1ee3c v\u00ed nh\u01b0 \u201cb\u1ed9 n\u00e3o\u201d c\u1ee7a thi\u1ebft b\u1ecb. B\u1ed9 ph\u1eadn n\u00e0y ti\u1ebfp nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb nh\u00e0 m\u1ea1ng (nh\u01b0 c\u00f4ng ngh\u1ec7 GPON \u2013 c\u00e1p quang th\u1ee5 \u0111\u1ed9ng), sau \u0111\u00f3 x\u1eed l\u00fd v\u00e0 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh t\u00edn hi\u1ec7u ph\u00f9 h\u1ee3p cho c\u00e1c thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i.<\/li>\n<li><strong>B\u1ed9 thu ph\u00e1t s\u00f3ng (\u00e1p d\u1ee5ng cho modem wifi):<\/strong> Nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb nh\u00e0 m\u1ea1ng v\u00e0 ph\u00e1t s\u00f3ng wifi \u0111\u1ec3 c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng d\u00e2y nh\u01b0 \u0111i\u1ec7n tho\u1ea1i, laptop c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i.<\/li>\n<li><strong>Anten:<\/strong> Gi\u00fap c\u1ea3i thi\u1ec7n ph\u1ea1m vi v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u00f3ng wifi. T\u00f9y thi\u1ebft k\u1ebf, anten c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p s\u1eb5n ho\u1eb7c l\u1eafp r\u1eddi b\u00ean ngo\u00e0i.<\/li>\n<li><strong>C\u1ed5ng LAN v\u00e0 WAN:<\/strong> C\u1ed5ng LAN d\u00f9ng \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb trong m\u1ea1ng n\u1ed9i b\u1ed9 (m\u00e1y t\u00ednh, m\u00e1y in&#8230;) qua d\u00e2y m\u1ea1ng. C\u1ed5ng WAN l\u00e0 n\u01a1i ti\u1ebfp nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb nh\u00e0 m\u1ea1ng.<\/li>\n<li><strong>B\u1ed9 truy\u1ec1n t\u00edn hi\u1ec7u qua c\u1ed5ng LAN:<\/strong> H\u1ed7 tr\u1ee3 truy\u1ec1n d\u1eef li\u1ec7u qua c\u1ed5ng LAN t\u1edbi c\u00e1c thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i c\u00f3 d\u00e2y.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Mot-so-loi-ich-va-han-che-cua-Modem\"><\/span>M\u1ed9t s\u1ed1 l\u1ee3i \u00edch v\u00e0 h\u1ea1n ch\u1ebf c\u1ee7a Modem<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Gi\u1ed1ng nh\u01b0 b\u1ea5t k\u1ef3 thi\u1ebft b\u1ecb c\u00f4ng ngh\u1ec7 n\u00e0o, modem c\u0169ng c\u00f3 nh\u1eefng l\u1ee3i \u00edch v\u00e0 h\u1ea1n ch\u1ebf ri\u00eang.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Loi-ich-cua-Modem\"><\/span>L\u1ee3i \u00edch c\u1ee7a Modem<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>C\u1ea7u n\u1ed1i Internet:<\/strong> L\u00e0 thi\u1ebft b\u1ecb b\u1eaft bu\u1ed9c \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u, gi\u00fap c\u00e1c thi\u1ebft b\u1ecb s\u1ed1 c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi m\u1ea1ng l\u01b0\u1edbi Internet r\u1ed9ng l\u1edbn.<\/li>\n<li><strong>\u0110\u1ea3m b\u1ea3o t\u01b0\u01a1ng th\u00edch:<\/strong> \u0110\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u t\u1eeb nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c hi\u1ec3u b\u1edfi c\u00e1c thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n, b\u1ea5t k\u1ec3 lo\u1ea1i h\u00ecnh \u0111\u01b0\u1eddng truy\u1ec1n v\u1eadt l\u00fd.<\/li>\n<li><strong>T\u00ednh \u1ed5n \u0111\u1ecbnh:<\/strong> C\u00e1c modem chuy\u00ean d\u1ee5ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 cung c\u1ea5p k\u1ebft n\u1ed1i \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/li>\n<li><strong>D\u1ec5 d\u00e0ng c\u00e0i \u0111\u1eb7t c\u01a1 b\u1ea3n:<\/strong> \u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng ph\u1ed5 th\u00f4ng, vi\u1ec7c c\u00e0i \u0111\u1eb7t modem th\u01b0\u1eddng kh\u00e1 \u0111\u01a1n gi\u1ea3n theo h\u01b0\u1edbng d\u1eabn c\u1ee7a ISP.<\/li>\n<\/ul>\n<figure id=\"attachment_31945\" aria-describedby=\"caption-attachment-31945\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31945\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Mot-so-loi-ich-va-han-che-cua-Modem.jpg\" alt=\"M\u1ed9t s\u1ed1 l\u1ee3i \u00edch v\u00e0 h\u1ea1n ch\u1ebf c\u1ee7a Modem\" width=\"800\" height=\"533\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Mot-so-loi-ich-va-han-che-cua-Modem.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Mot-so-loi-ich-va-han-che-cua-Modem-300x200.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Mot-so-loi-ich-va-han-che-cua-Modem-768x512.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Mot-so-loi-ich-va-han-che-cua-Modem-750x500.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-31945\" class=\"wp-caption-text\">M\u1ed9t s\u1ed1 l\u1ee3i \u00edch v\u00e0 h\u1ea1n ch\u1ebf c\u1ee7a Modem<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Han-che-cua-Modem\"><\/span>H\u1ea1n ch\u1ebf c\u1ee7a Modem<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Gi\u1edbi h\u1ea1n b\u1edfi c\u00f4ng ngh\u1ec7:<\/strong> T\u1ed1c \u0111\u1ed9 v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a modem b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi c\u00f4ng ngh\u1ec7 \u0111\u01b0\u1eddng truy\u1ec1n m\u00e0 n\u00f3 s\u1eed d\u1ee5ng (v\u00ed d\u1ee5: modem dial-up r\u1ea5t ch\u1eadm so v\u1edbi c\u00e1p quang).<\/li>\n<li><strong>C\u1ea7n th\u00eam thi\u1ebft b\u1ecb:<\/strong> M\u1ed9t modem &#8220;th\u01b0\u1eddng&#8221; kh\u00f4ng t\u00edch h\u1ee3p Wi-Fi s\u1ebd c\u1ea7n th\u00eam m\u1ed9t router \u0111\u1ec3 c\u00f3 th\u1ec3 ph\u00e1t s\u00f3ng kh\u00f4ng d\u00e2y v\u00e0 chia s\u1ebb k\u1ebft n\u1ed1i cho nhi\u1ec1u thi\u1ebft b\u1ecb.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng b\u1ea3o m\u1eadt c\u01a1 b\u1ea3n:<\/strong> Modem \u0111\u1ed9c l\u1eadp th\u01b0\u1eddng ch\u1ec9 c\u00f3 c\u00e1c t\u00ednh n\u0103ng b\u1ea3o m\u1eadt r\u1ea5t c\u01a1 b\u1ea3n, c\u1ea7n router \u0111\u1ec3 cung c\u1ea5p l\u1edbp b\u1ea3o v\u1ec7 m\u1ea1nh m\u1ebd h\u01a1n.<\/li>\n<li><strong>\u0110i\u1ec3m l\u1ed7i ti\u1ec1m \u1ea9n:<\/strong> N\u1ebfu modem g\u1eb7p s\u1ef1 c\u1ed1, to\u00e0n b\u1ed9 k\u1ebft n\u1ed1i Internet c\u1ee7a b\u1ea1n s\u1ebd b\u1ecb gi\u00e1n \u0111o\u1ea1n.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Khi-nao-dung-modem-Wifi\"><\/span>Khi n\u00e0o d\u00f9ng modem Wifi?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Modem \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi c\u1ea7n k\u1ebft n\u1ed1i Internet t\u1eeb nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 (ISP) v\u00e0o m\u1ea1ng n\u1ed9i b\u1ed9. C\u1ee5 th\u1ec3:<\/p>\n<ul>\n<li>Khi l\u1eafp \u0111\u1eb7t m\u1ea1ng Internet m\u1edbi, modem l\u00e0 thi\u1ebft b\u1ecb c\u1ea7n thi\u1ebft \u0111\u1ec3 nh\u1eadn t\u00edn hi\u1ec7u m\u1ea1ng t\u1eeb nh\u00e0 cung c\u1ea5p v\u00e0 gi\u1ea3i m\u00e3 t\u00edn hi\u1ec7u \u0111\u00f3.<\/li>\n<li>Khi mu\u1ed1n chia s\u1ebb Internet kh\u00f4ng d\u00e2y trong gia \u0111\u00ecnh ho\u1eb7c v\u0103n ph\u00f2ng, modem wifi (c\u00f3 t\u00edch h\u1ee3p router) gi\u00fap ph\u00e1t s\u00f3ng wifi cho nhi\u1ec1u thi\u1ebft b\u1ecb c\u00f9ng k\u1ebft n\u1ed1i.<\/li>\n<li>Khi c\u1ea7n m\u1ea1ng \u1ed5n \u0111\u1ecbnh, t\u1ed1c \u0111\u1ed9 cao cho c\u00e1c c\u00f4ng vi\u1ec7c nh\u01b0 ch\u01a1i game, thi\u1ebft k\u1ebf \u0111\u1ed3 h\u1ecda, ch\u1ec9nh s\u1eeda video, ho\u1eb7c l\u00e0m vi\u1ec7c nh\u00f3m, modem gi\u00fap \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i c\u00f3 d\u00e2y v\u00e0 kh\u00f4ng d\u00e2y \u1ed5n \u0111\u1ecbnh.<\/li>\n<li>D\u00f9ng modem wifi \u0111\u00e1p \u1ee9ng nhu c\u1ea7u k\u1ebft n\u1ed1i \u0111a thi\u1ebft b\u1ecb c\u00f9ng l\u00fac, tr\u00e1nh ngh\u1ebdn m\u1ea1ng v\u00e0 gi\u1ea3m gi\u00e1n \u0111o\u1ea1n k\u1ebft n\u1ed1i.<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, modem d\u00f9ng khi c\u1ea7n:<\/p>\n<ul>\n<li>K\u1ebft n\u1ed1i Internet t\u1eeb nh\u00e0 m\u1ea1ng.<\/li>\n<li>Ph\u00e1t wifi cho c\u00e1c thi\u1ebft b\u1ecb.<\/li>\n<li>\u0110\u1ea3m b\u1ea3o m\u1ea1ng \u1ed5n \u0111\u1ecbnh, t\u1ed1c \u0111\u1ed9 cao.<\/li>\n<li>H\u1ed7 tr\u1ee3 nhi\u1ec1u thi\u1ebft b\u1ecb c\u00f9ng l\u00fac.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Mua-modem-wifi-o-dau\"><\/span>Mua modem wifi \u1edf \u0111\u00e2u?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>B\u1ea1n c\u00f3 th\u1ec3 mua\u00a0modem wifi\u00a0t\u1ea1i c\u00e1c c\u1eeda h\u00e0ng \u0111i\u1ec7n t\u1eed, si\u00eau th\u1ecb c\u00f4ng ngh\u1ec7, ho\u1eb7c c\u00e1c trang th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed v\u1edbi nhi\u1ec1u l\u1ef1a ch\u1ecdn v\u1ec1 gi\u00e1 th\u00e0nh, th\u01b0\u01a1ng hi\u1ec7u v\u00e0 ch\u1ebf \u0111\u1ed9 b\u1ea3o h\u00e0nh.<\/p>\n<p>C\u1eeda h\u00e0ng modem wifi n\u1ed5i b\u1eadt nh\u01b0: <strong>Wifi Shop, Wifishop.com.vn &#8211; Wifi Shop<\/strong>&#8230;<\/p>\n<p>Ngo\u00e0i hai c\u1eeda h\u00e0ng tr\u00ean, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c h\u1ec7 th\u1ed1ng b\u00e1n l\u1ebb uy t\u00edn nh\u01b0\u00a0<strong>CellphoneS,\u00a0\u0110i\u1ec7n m\u00e1y Xanh,\u00a0Th\u1ebf gi\u1edbi di \u0111\u1ed9ng,\u00a0Viettel Store<\/strong>, ho\u1eb7c mua online tr\u00ean Shopee. Nh\u1eefng n\u01a1i n\u00e0y \u0111\u1ec1u cung c\u1ea5p modem wifi ch\u00ednh h\u00e3ng t\u1eeb c\u00e1c th\u01b0\u01a1ng hi\u1ec7u ph\u1ed5 bi\u1ebfn nh\u01b0 <strong>TP-Link, Totolink, Asus, Tenda, Xiaomi<\/strong>&#8230; v\u1edbi ch\u1ebf \u0111\u1ed9 b\u1ea3o h\u00e0nh v\u00e0 nhi\u1ec1u ch\u01b0\u01a1ng tr\u00ecnh khuy\u1ebfn m\u00e3i.<\/p>\n<p>N\u1ebfu \u01b0u ti\u00ean giao h\u00e0ng nhanh, b\u1ea3o h\u00e0nh d\u00e0i ho\u1eb7c h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt, n\u00ean ch\u1ecdn c\u00e1c c\u1eeda h\u00e0ng c\u00f4ng ngh\u1ec7 l\u1edbn ho\u1eb7c showroom ch\u00ednh h\u00e3ng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"TOP-cac-Modem-wifi-manh-nhat-hien-nay-2025\"><\/span>TOP c\u00e1c Modem wifi m\u1ea1nh nh\u1ea5t hi\u1ec7n nay 2025<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Modem wifi m\u1ea1nh nh\u1ea5t hi\u1ec7n nay (2025) th\u01b0\u1eddng l\u00e0 c\u00e1c thi\u1ebft b\u1ecb s\u1eed d\u1ee5ng chu\u1ea9n WiFi 6 tr\u1edf l\u00ean v\u1edbi t\u1ed1c \u0111\u1ed9 c\u1ef1c cao, ph\u00f9 h\u1ee3p cho gia \u0111\u00ecnh ho\u1eb7c doanh nghi\u1ec7p \u0111\u00f4ng thi\u1ebft b\u1ecb. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 modem wifi m\u1ea1nh m\u1ebd \u0111\u00e1ng ch\u00fa \u00fd g\u1ed3m:<\/p>\n<div style=\"overflow-x: auto;\">\n<table style=\"width: 100%; border-collapse: collapse; font-family: Arial, Helvetica, sans-serif; min-width: 750px; border: 1px solid #e6eefc;\">\n<thead>\n<tr>\n<th style=\"background: #0d6efd; color: #ffffff; padding: 12px 14px; font-size: 15px; border-right: 1px solid rgba(255, 255, 255, 0.15); text-align: center;\">Model<\/th>\n<th style=\"background: #0d6efd; color: #ffffff; padding: 12px 14px; font-size: 15px; border-right: 1px solid rgba(255, 255, 255, 0.15); text-align: center;\">Chu\u1ea9n WiFi<\/th>\n<th style=\"background: #0d6efd; color: #ffffff; padding: 12px 14px; font-size: 15px; border-right: 1px solid rgba(255, 255, 255, 0.15); text-align: center;\">T\u1ed1c \u0111\u1ed9 t\u1ed5ng<\/th>\n<th style=\"background: #0d6efd; color: #ffffff; padding: 12px 14px; font-size: 15px; border-right: 1px solid rgba(255, 255, 255, 0.15); text-align: center;\">Gi\u00e1 tham kh\u1ea3o<\/th>\n<th style=\"background: #0d6efd; color: #ffffff; padding: 12px 14px; font-size: 15px; text-align: center;\">Ph\u00f9 h\u1ee3p<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #ffffff;\">\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">Netgear Nighthawk RAX200<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">WiFi 6 tri-band<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">~10.8 Gbps<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">~9-10 tri\u1ec7u VND<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">Nh\u00e0 \u0111\u00f4ng ng\u01b0\u1eddi, smart home<\/td>\n<\/tr>\n<tr style=\"background: #f8fbff;\">\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">TP-Link Archer AX90<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">WiFi 6 tri-band<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">~6.6 Gbps<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">~5 tri\u1ec7u VND<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">Nh\u00e0 3-4 t\u1ea7ng<\/td>\n<\/tr>\n<tr style=\"background: #ffffff;\">\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">Asus RT-AX88U<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">WiFi 6<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">~6 Gbps<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">~6-7 tri\u1ec7u VND<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">Nh\u00e0 l\u1edbn, gamer<\/td>\n<\/tr>\n<tr style=\"background: #f8fbff;\">\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">Xiaomi AX6000<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">WiFi 6<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">~6 Gbps<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">~2.8 tri\u1ec7u VND<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">Gi\u00e1 r\u1ebb, m\u1ea1nh<\/td>\n<\/tr>\n<tr style=\"background: #ffffff;\">\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">Huawei AX3 Pro<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">WiFi 6<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">~3 Gbps<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">~1.5 tri\u1ec7u VND<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6eefc;\">C\u0103n h\u1ed9 v\u1eeba<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>C\u00e1c modem n\u00e0y h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 cao, b\u0103ng t\u1ea7n k\u00e9p ho\u1eb7c ba, k\u1ebft n\u1ed1i nhi\u1ec1u thi\u1ebft b\u1ecb c\u00f9ng l\u00fac, c\u00f4ng ngh\u1ec7 MU-MIMO v\u00e0 OFDMA gi\u00fap truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 v\u00e0 \u1ed5n \u0111\u1ecbnh h\u01a1n trong m\u00f4i tr\u01b0\u1eddng \u0111\u00f4ng thi\u1ebft b\u1ecb.<\/p>\n<p>N\u1ebfu nhu c\u1ea7u l\u00e0 gia \u0111\u00ecnh ho\u1eb7c c\u00e1 nh\u00e2n mu\u1ed1n t\u1ed1c \u0111\u1ed9 m\u1ea1nh, di\u1ec7n t\u00edch ph\u1ee7 s\u00f3ng l\u1edbn, n\u00ean \u01b0u ti\u00ean ch\u1ecdn modem WiFi 6 c\u1ee7a c\u00e1c th\u01b0\u01a1ng hi\u1ec7u nh\u01b0 Netgear, Asus, TP-Link, Xiaomi v\u00ec t\u00ednh \u1ed5n \u0111\u1ecbnh v\u00e0 h\u1ed7 tr\u1ee3 t\u00ednh n\u0103ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n<p>Doanh nghi\u1ec7p ho\u1eb7c v\u0103n ph\u00f2ng l\u1edbn c\u1ea7n t\u00ednh n\u0103ng qu\u1ea3n l\u00fd m\u1ea1ng chuy\u00ean s\u00e2u v\u00e0 s\u1ed1 l\u01b0\u1ee3ng user l\u1edbn n\u00ean tham kh\u1ea3o c\u00e1c d\u00f2ng chuy\u00ean d\u1ee5ng nh\u01b0 UniFi, Aruba ho\u1eb7c Linksys Mesh WiFi.<\/p>\n<p>T\u00f3m l\u1ea1i, modem wifi m\u1ea1nh nh\u1ea5t 2025 l\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m WiFi 6 tr\u1edf l\u00ean v\u1edbi t\u1ed1c \u0111\u1ed9 t\u1eeb 3-11 Gbps, \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1edfi c\u00e1c h\u00e3ng c\u00f4ng ngh\u1ec7 l\u1edbn nh\u01b0 Netgear, Asus, TP-Link, Xiaomi, Huawei.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cach-kiem-tra-modem-truoc-khi-mua\"><\/span>C\u00e1ch ki\u1ec3m tra modem tr\u01b0\u1edbc khi mua<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div>\n<p>\u0110\u1ec3 ki\u1ec3m tra modem tr\u01b0\u1edbc khi mua, c\u1ea7n ki\u1ec3m tra c\u00e1c y\u1ebfu t\u1ed1 sau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u:<\/p>\n<ul>\n<li><strong>Ki\u1ec3m tra ngo\u1ea1i h\u00ecnh:<\/strong> Xem modem c\u00f3 d\u1ea5u hi\u1ec7u h\u01b0 h\u1ea1i, tr\u1ea7y x\u01b0\u1edbc nhi\u1ec1u, ch\u00e2n c\u1eafm, c\u1ed5ng k\u1ebft n\u1ed1i c\u00f3 ch\u1eafc ch\u1eafn v\u00e0 kh\u00f4ng b\u1ecb g\u00e3y, l\u1ecfng.<\/li>\n<li><strong>Xem th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt:<\/strong> \u0110\u1ea3m b\u1ea3o modem h\u1ed7 tr\u1ee3 chu\u1ea9n m\u1ea1ng ph\u00f9 h\u1ee3p (VD: ADSL, VDSL, c\u00e1p quang), b\u0103ng t\u1ea7n wifi (2.4GHz, 5GHz), t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i, s\u1ed1 c\u1ed5ng LAN \u0111\u1ee7 d\u00f9ng.<\/li>\n<li><strong>Th\u1eed k\u1ebft n\u1ed1i:<\/strong> N\u1ebfu c\u00f3 th\u1ec3, nh\u1edd nh\u00e2n vi\u00ean cho th\u1eed k\u1ebft n\u1ed1i modem v\u1edbi ngu\u1ed3n m\u1ea1ng v\u00e0 m\u1ed9t thi\u1ebft b\u1ecb \u0111\u1ec3 ki\u1ec3m tra t\u00edn hi\u1ec7u wifi, t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i, v\u00e0 kh\u1ea3 n\u0103ng ph\u00e1t s\u00f3ng.<\/li>\n<li><strong>Ki\u1ec3m tra \u0111\u00e8n b\u00e1o:<\/strong> \u0110\u00e8n t\u00edn hi\u1ec7u ph\u1ea3i ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, kh\u00f4ng c\u00f3 \u0111\u00e8n b\u00e1o l\u1ed7i hay nh\u1ea5p nh\u00e1y b\u1ea5t th\u01b0\u1eddng.<\/li>\n<li><strong>Xem b\u1ea3o h\u00e0nh, xu\u1ea5t x\u1ee9:<\/strong> Ki\u1ec3m tra tem b\u1ea3o h\u00e0nh, xu\u1ea5t x\u1ee9 r\u00f5 r\u00e0ng, h\u1ea1n b\u1ea3o h\u00e0nh c\u00f2n d\u00e0i \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 khi c\u00f3 s\u1ef1 c\u1ed1.<\/li>\n<li><strong>\u0110\u1ecdc review, h\u1ecfi t\u01b0 v\u1ea5n:<\/strong> Tham kh\u1ea3o \u00fd ki\u1ebfn \u0111\u00e1nh gi\u00e1 c\u1ee7a ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c nh\u00e2n vi\u00ean k\u1ef9 thu\u1eadt \u0111\u1ec3 ch\u1eafc ch\u1eafn modem ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u s\u1eed d\u1ee5ng.<\/li>\n<\/ul>\n<p>Ki\u1ec3m tra k\u1ef9 c\u00e1c \u0111i\u1ec3m tr\u00ean gi\u00fap tr\u00e1nh mua ph\u1ea3i modem l\u1ed7i, k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi m\u1ea1ng \u0111ang s\u1eed d\u1ee5ng.<\/p>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Cach-khac-phuc-su-co-thuong-gap-voi-Modem\"><\/span>C\u00e1ch kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 th\u01b0\u1eddng g\u1eb7p v\u1edbi Modem<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u00f9 l\u00e0 thi\u1ebft b\u1ecb quan tr\u1ecdng, modem \u0111\u00f4i khi c\u0169ng g\u1eb7p ph\u1ea3i c\u00e1c v\u1ea5n \u0111\u1ec1. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 s\u1ef1 c\u1ed1 ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c \u0111\u01a1n gi\u1ea3n:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Modem-khong-co-tin-hieumat-ket-noi\"><\/span>Modem kh\u00f4ng c\u00f3 t\u00edn hi\u1ec7u\/m\u1ea5t k\u1ebft n\u1ed1i<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Ki\u1ec3m tra \u0111\u00e8n b\u00e1o:<\/strong> C\u00e1c modem th\u01b0\u1eddng c\u00f3 c\u00e1c \u0111\u00e8n b\u00e1o tr\u1ea1ng th\u00e1i (Power, DSL\/Cable\/Fiber, Internet, LAN\/Wi-Fi). N\u1ebfu \u0111\u00e8n b\u00e1o Internet ho\u1eb7c t\u00edn hi\u1ec7u kh\u00f4ng s\u00e1ng\/nh\u1ea5p nh\u00e1y b\u1ea5t th\u01b0\u1eddng, \u0111\u00f3 l\u00e0 d\u1ea5u hi\u1ec7u c\u00f3 v\u1ea5n \u0111\u1ec1.<\/li>\n<li><strong>Ki\u1ec3m tra d\u00e2y c\u00e1p:<\/strong> \u0110\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 c\u00e1c d\u00e2y c\u00e1p (d\u00e2y ngu\u1ed3n, d\u00e2y t\u00edn hi\u1ec7u t\u1eeb ISP, d\u00e2y Ethernet) \u0111\u1ec1u \u0111\u01b0\u1ee3c c\u1eafm ch\u1eafc ch\u1eafn v\u00e0o modem v\u00e0 c\u00e1c c\u1ed5ng t\u01b0\u01a1ng \u1ee9ng.<\/li>\n<li><strong>Kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem:<\/strong> \u0110\u00e2y l\u00e0 gi\u1ea3i ph\u00e1p &#8220;kinh \u0111i\u1ec3n&#8221; nh\u01b0ng hi\u1ec7u qu\u1ea3. R\u00fat d\u00e2y ngu\u1ed3n c\u1ee7a modem, ch\u1edd kho\u1ea3ng 10-15 gi\u00e2y, sau \u0111\u00f3 c\u1eafm l\u1ea1i. Ch\u1edd v\u00e0i ph\u00fat \u0111\u1ec3 modem kh\u1edfi \u0111\u1ed9ng ho\u00e0n to\u00e0n v\u00e0 thi\u1ebft l\u1eadp l\u1ea1i k\u1ebft n\u1ed1i.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Toc-do-Internet-cham\"><\/span>T\u1ed1c \u0111\u1ed9 Internet ch\u1eadm<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Ki\u1ec3m tra g\u00f3i c\u01b0\u1edbc:<\/strong> \u0110\u1ea3m b\u1ea3o g\u00f3i c\u01b0\u1edbc Internet b\u1ea1n \u0111ang s\u1eed d\u1ee5ng \u0111\u00e1p \u1ee9ng \u0111\u1ee7 nhu c\u1ea7u c\u1ee7a m\u00ecnh.<\/li>\n<li><strong>Ki\u1ec3m tra s\u1ed1 l\u01b0\u1ee3ng thi\u1ebft b\u1ecb:<\/strong> Qu\u00e1 nhi\u1ec1u thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i c\u00f9ng l\u00fac ho\u1eb7c m\u1ed9t thi\u1ebft b\u1ecb \u0111ang t\u1ea3i xu\u1ed1ng\/stream <a href=\"https:\/\/interdata.vn\/blog\/big-data-la-gi\/\">d\u1eef li\u1ec7u l\u1edbn<\/a> c\u00f3 th\u1ec3 l\u00e0m ch\u1eadm m\u1ea1ng.<\/li>\n<li><strong>V\u1ecb tr\u00ed modem (\u0111\u1ed1i v\u1edbi Wi-Fi):<\/strong> \u0110\u1eb7t modem \u1edf v\u1ecb tr\u00ed trung t\u00e2m, tr\u00e1nh xa c\u00e1c v\u1eadt c\u1ea3n l\u1edbn (t\u01b0\u1eddng d\u00e0y, thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u00e1c) c\u00f3 th\u1ec3 g\u00e2y nhi\u1ec5u s\u00f3ng Wi-Fi.<\/li>\n<li><strong>C\u1eadp nh\u1eadt firmware:<\/strong> \u0110\u00f4i khi, vi\u1ec7c c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m (firmware) cho modem c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 kh\u1eafc ph\u1ee5c l\u1ed7i. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm h\u01b0\u1edbng d\u1eabn tr\u00ean trang web c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t ho\u1eb7c li\u00ean h\u1ec7 ISP.<\/li>\n<\/ul>\n<p>Hi\u1ec3u r\u00f5 v\u1ec1 modem kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n s\u1eed d\u1ee5ng Internet hi\u1ec7u qu\u1ea3 h\u01a1n m\u00e0 c\u00f2n gi\u00fap b\u1ea1n t\u1ef1 tin h\u01a1n trong vi\u1ec7c l\u1ef1a ch\u1ecdn v\u00e0 x\u1eed l\u00fd c\u00e1c v\u1ea5n \u0111\u1ec1 m\u1ea1ng c\u01a1 b\u1ea3n. <a href=\"https:\/\/interdata.vn\/\"><strong>InterData<\/strong> <\/a>lu\u00f4n s\u1eb5n s\u00e0ng cung c\u1ea5p nh\u1eefng th\u00f4ng tin v\u00e0 gi\u1ea3i ph\u00e1p t\u1ed1t nh\u1ea5t cho nhu c\u1ea7u k\u1ebft n\u1ed1i c\u1ee7a b\u1ea1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ng\u00e0y nay, vi\u1ec7c k\u1ebft n\u1ed1i Internet \u0111\u00e3 tr\u1edf th\u00e0nh nhu c\u1ea7u thi\u1ebft y\u1ebfu trong c\u1ea3 c\u00f4ng vi\u1ec7c l\u1eabn cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y. V\u00e0 \u0111\u1ec3 k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c v\u1edbi m\u1ea1ng Internet, modem ch\u00ednh l\u00e0 thi\u1ebft b\u1ecb \u0111\u00f3ng vai tr\u00f2 trung gian quan tr\u1ecdng gi\u1eefa b\u1ea1n v\u00e0 th\u1ebf gi\u1edbi tr\u1ef1c tuy\u1ebfn. InterData s\u1ebd gi\u00fap b\u1ea1n t\u00ecm hi\u1ec3u<\/p>\n","protected":false},"author":11,"featured_media":31946,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[151],"tags":[],"class_list":["post-31941","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mang"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/31941","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=31941"}],"version-history":[{"count":7,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/31941\/revisions"}],"predecessor-version":[{"id":33974,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/31941\/revisions\/33974"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/31946"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=31941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=31941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=31941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}