L\u1ed7i “Windows kh\u00f4ng th\u1ec3 k\u1ebft n\u1ed1i \u0111\u1ebfn m\u1ea1ng n\u00e0y” xu\u1ea5t hi\u1ec7n khi b\u1ea1n nh\u1ea5p v\u00e0o m\u1ea1ng Wi-Fi v\u00e0 Windows th\u1ea5t b\u1ea1i trong vi\u1ec7c ho\u00e0n th\u00e0nh k\u1ebft n\u1ed1i, th\u01b0\u1eddng sau khi thay \u0111\u1ed5i m\u1eadt kh\u1ea9u, c\u1eadp nh\u1eadt Windows ho\u1eb7c m\u1ed9t l\u1ed7i tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n l\u00e0m h\u1ecfng h\u1ed3 s\u01a1 m\u1ea1ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef.<\/p>\n

Tr\u01b0\u1edbc khi B\u1eaft \u0110\u1ea7u<\/h2>\n

\u0110\u1ea3m b\u1ea3o b\u1ea1n c\u00f3:<\/p>\n

M\u1eadt kh\u1ea9u m\u1ea1ng Wi-Fi c\u1ee7a b\u1ea1n s\u1eb5n s\u00e0ng (b\u1ea1n s\u1ebd c\u1ea7n n\u00f3 sau khi qu\u00ean m\u1ea1ng)<\/li>\n
Truy c\u1eadp qu\u1ea3n tr\u1ecb vi\u00ean tr\u00ean m\u00e1y t\u00ednh Windows 11<\/li>\n
Windows 11 \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt \u0111\u1ea7y \u0111\u1ee7 (ki\u1ec3m tra \u1edf C\u00e0i \u0111\u1eb7t<\/strong> > C\u1eadp nh\u1eadt Windows<\/strong>)<\/li>\n

Truy c\u1eadp tr\u1ef1c ti\u1ebfp v\u00e0o b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n \u0111\u1ec3 c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn khi c\u1ea7n thi\u1ebft.<\/li>\n<\/ul>\n
\n\n\n\n\n\n\n\n
Y\u00eau c\u1ea7u<\/th>\n Quy t\u1eafc b\u1eaft bu\u1ed9c:<\/p>\n
1. Ch\u1ec9 d\u1ecbch s\u00e1t ngh\u0129a c\u1ee7a n\u1ed9i dung g\u1ed1c.
\n2. Gi\u1eef nguy\u00ean th\u1ebb HTML v\u00e0 thu\u1ed9c t\u00ednh c\u1ee7a ch\u00fang.
\n3. Gi\u1eef nguy\u00ean t\u1eeb chuy\u00ean ng\u00e0nh.
\n4. Gi\u1eef nguy\u00ean \u0111\u01a1n v\u1ecb ti\u1ec1n t\u1ec7 g\u1ed1c.
\n5. Tr\u1ea3 v\u1ec1 k\u1ebft qu\u1ea3 d\u1ecbch m\u00e0 kh\u00f4ng vi\u1ebft l\u1eddi gi\u1edbi thi\u1ec7u ho\u1eb7c b\u00ecnh lu\u1eadn.
\n6. Kh\u00f4ng bao b\u1ecdc k\u1ebft qu\u1ea3 trong m\u00e3 HTML ho\u1eb7c markdown.<\/th>\n<\/tr>\n<\/thead>\n
OS<\/td>\n Windows 11 23H2, 24H2 ho\u1eb7c 25H2 (c\u1eadp nh\u1eadt b\u1ea3o m\u1eadt th\u00e1ng 4 n\u0103m 2026 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb)<\/td>\n<\/tr>\n
Lo\u1ea1i t\u00e0i kho\u1ea3n<\/td>\n Ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb vi\u00ean Local ho\u1eb7c ng\u01b0\u1eddi d\u00f9ng Microsoft c\u00f3 quy\u1ec1n qu\u1ea3n tr\u1ecb<\/td>\n<\/tr>\n
Th\u1eddi gian c\u1ea7n thi\u1ebft<\/td>\n T\u1eeb 5-30 ph\u00fat t\u00f9y thu\u1ed9c v\u00e0o s\u1eeda l\u1ed7i n\u00e0o hi\u1ec7u qu\u1ea3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n
Quy t\u1eafc b\u1eaft bu\u1ed9c:<\/p>\n
1. Ch\u1ec9 d\u1ecbch s\u00e1t ngh\u0129a c\u1ee7a n\u1ed9i dung g\u1ed1c.
\n2. Gi\u1eef nguy\u00ean th\u1ebb HTML v\u00e0 thu\u1ed9c t\u00ednh c\u1ee7a ch\u00fang.
\n3. Gi\u1eef nguy\u00ean c\u00e1c t\u1eeb chuy\u00ean ng\u00e0nh.
\n4. Gi\u1eef nguy\u00ean \u0111\u01a1n v\u1ecb ti\u1ec1n t\u1ec7 g\u1ed1c.
\n5. Ch\u1ec9 tr\u1ea3 v\u1ec1 k\u1ebft qu\u1ea3 d\u1ecbch.
\n6. Kh\u00f4ng bao b\u1ecdc k\u1ebft qu\u1ea3 trong “`html“` hay b\u1ea5t k\u1ef3 markdown n\u00e0o.<\/p>\n
Fix #1: Qu\u00ean m\u1ea1ng v\u00e0 k\u1ebft n\u1ed1i l\u1ea1i<\/h2>\n
\u0110\u00e2y l\u00e0 c\u00e1ch s\u1eeda l\u1ed7i nhanh nh\u1ea5t v\u00e0 gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c ph\u1ea7n l\u1edbn c\u00e1c tr\u01b0\u1eddng h\u1ee3p sai s\u00f3t. M\u1ed9t b\u1ea3n ghi m\u1ea1ng b\u1ecb h\u01b0 h\u1ecfng l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t, v\u00e0 qu\u00ean m\u1ea1ng s\u1ebd x\u00f3a b\u1ecf n\u00f3 n\u00ean Windows c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t b\u1ea3n m\u1edbi s\u1ea1ch s\u1ebd.<\/p>\n
\n
Nh\u1ea5p v\u00e0o bi\u1ec3u t\u01b0\u1ee3ng Wi-Fi<\/strong> \u1edf thanh h\u1ec7 th\u1ed1ng (ph\u1ea7n g\u00f3c d\u01b0\u1edbi b\u00ean ph\u1ea3i m\u00e0n h\u00ecnh).<\/li>\n
Nh\u1ea5p v\u00e0o m\u0169i t\u00ean (><\/strong>) b\u00ean c\u1ea1nh t\u00ean m\u1ea1ng Wi-Fi c\u1ee7a b\u1ea1n \u0111\u1ec3 m\u1edf r\u1ed9ng n\u00f3.<\/li>\n
Nh\u1ea5n Qu\u00ean<\/strong>.<\/li>\n<\/ul>\n
$\"Windows$ <\/figure>\n
\n
Ch\u1edd 5 gi\u00e2y, sau \u0111\u00f3 nh\u1ea5p v\u00e0o t\u00ean m\u1ea1ng c\u1ee7a b\u1ea1n l\u1ea1i m\u1ed9t l\u1ea7n n\u1eefa.<\/li>\n
Nh\u1eadp m\u1eadt kh\u1ea9u Wi-Fi khi \u0111\u01b0\u1ee3c nh\u1eafc v\u00e0 nh\u1ea5p v\u00e0o Connect<\/strong>.<\/li>\n<\/ul>\n
K\u1ebft qu\u1ea3 mong \u0111\u1ee3i:
\nWindows k\u1ebft n\u1ed1i b\u00ecnh th\u01b0\u1eddng v\u00e0 hi\u1ec3n th\u1ecb “K\u1ebft n\u1ed1i, b\u1ea3o m\u1eadt” d\u01b0\u1edbi t\u00ean m\u1ea1ng.<\/p>\n
T\u1eaft v\u00e0 b\u1eadt l\u1ea1i b\u1ed9 \u0111i\u1ec1u h\u1ee3p Wi-Fi<\/h2>\n
K\u00edch ho\u1ea1t ho\u1eb7c t\u1eaft b\u1ed9 \u0111i\u1ec1u h\u1ee3p s\u1ebd khi\u1ebfn Windows ph\u1ea3i kh\u1edfi \u0111\u1ed9ng l\u1ea1i tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n v\u00e0 x\u00f3a tr\u1ea1ng th\u00e1i b\u1ecb k\u1eb9t m\u00e0 kh\u00f4ng c\u1ea7n th\u1ef1c hi\u1ec7n restart to\u00e0n b\u1ed9.<\/p>\n
\n
Nh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0o n\u00fat B\u1eaft \u0111\u1ea7u<\/strong> v\u00e0 ch\u1ecdn Qu\u1ea3n l\u00fd thi\u1ebft b\u1ecb<\/strong>.<\/li>\n
Thi\u1ebft b\u1ecb m\u1ea1ng<\/li>\n
Nh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0o b\u1ed9 \u0111i\u1ec1u h\u1ee3p kh\u00f4ng d\u00e2y c\u1ee7a b\u1ea1n (th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n v\u1edbi t\u00ean nh\u00e0 s\u1ea3n xu\u1ea5t, v\u00ed d\u1ee5: “Intel Wi-Fi 6E AX211”) v\u00e0 ch\u1ecdn Kh\u00f3a thi\u1ebft b\u1ecb<\/strong>.<\/li>\n<\/ul>\n
$\"Device$ <\/figure>\n
\n
Nh\u1ea5n v\u00e0o Yes<\/strong> \u0111\u1ec3 x\u00e1c nh\u1eadn.<\/li>\n
Ch\u1edd 10 gi\u00e2y.<\/li>\n
B\u1ea5m chu\u1ed9t ph\u1ea3i v\u00e0o c\u00f9ng m\u1ed9t b\u1ed9 \u0111i\u1ec1u h\u1ee3p v\u00e0 ch\u1ecdn S\u1eed d\u1ee5ng thi\u1ebft b\u1ecb<\/strong>.<\/li>\n
K\u1ebft n\u1ed1i l\u1ea1i m\u1ea1ng c\u1ee7a b\u1ea1n.<\/li>\n<\/ul>\n
S\u1eeda ch\u1eefa #3: Ch\u1ea1y Troubleshooter M\u1ea1ng<\/h2>\n
Tr\u1ee3 l\u00fd t\u1ef1 \u0111\u1ed9ng c\u1ee7a Windows 11 c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 s\u1eeda l\u1ed7i c\u1ea5u h\u00ecnh ph\u1ed5 bi\u1ebfn m\u00e0 kh\u00f4ng c\u1ea7n c\u00e1c b\u01b0\u1edbc th\u1ee7 c\u00f4ng.<\/p>\n
\n
M\u1edf C\u00e0i \u0111\u1eb7t > H\u1ec7 th\u1ed1ng > Ch\u1ea9n \u0111o\u00e1n l\u1ed7i.<\/li>\n
Nh\u1ea5p v\u00e0o **C\u00e1c tr\u00ecnh x\u1eed l\u00fd kh\u00e1c**.<\/li>\n
T\u00ecm v\u00e0 nh\u1ea5p v\u00e0o **K\u1ebft n\u1ed1i Internet** r\u1ed3i nh\u1ea5p v\u00e0o **Ch\u1ea1y**.<\/li>\n<\/ul>\n
$\"Windows$ <\/figure>\n
\n
H\u00e3y tu\u00e2n theo c\u00e1c b\u01b0\u1edbc tr\u00ean m\u00e0n h\u00ecnh v\u00e0 \u00e1p d\u1ee5ng b\u1ea5t k\u1ef3 s\u1eeda \u0111\u1ed5i \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t n\u00e0o.<\/li>\n
Kh\u1edfi \u0111\u1ed9ng l\u1ea1i m\u00e1y t\u00ednh n\u1ebfu troubleshoot y\u00eau c\u1ea7u b\u1ea1n ph\u1ea3i l\u00e0m nh\u01b0 v\u1eady.<\/li>\n<\/ul>\n
K\u1ebft qu\u1ea3 mong \u0111\u1ee3i: Troubleshooter s\u1ebd t\u1ef1 \u0111\u1ed9ng s\u1eeda l\u1ed7i ho\u1eb7c cho bi\u1ebft ch\u00ednh x\u00e1c v\u1ea5n \u0111\u1ec1 \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n, cung c\u1ea5p m\u1ed9t \u0111i\u1ec3m xu\u1ea5t ph\u00e1t h\u1eefu \u00edch cho l\u1ea7n s\u1eeda ch\u1eefa ti\u1ebfp theo.<\/p>\n
C\u00e0i \u0111\u1eb7t l\u1ea1i DNS v\u00e0 TCP\/IP<\/h2>\n
C\u00e1c b\u1ea3n ghi DNS c\u0169 ho\u1eb7c b\u1ed9 ph\u00e2n gi\u1ea3i \u0111\u1ecba ch\u1ec9 IP b\u1ecb h\u1ecfng c\u00f3 th\u1ec3 ch\u1eb7n k\u1ebft n\u1ed1i ngay c\u1ea3 khi h\u1ed3 s\u01a1 m\u1ea1ng \u1ed5n \u0111\u1ecbnh. C\u00e1c l\u1ec7nh n\u00e0y s\u1ebd reset c\u1ea3 hai m\u1ed9t c\u00e1ch s\u1ea1ch s\u1ebd.<\/p>\n
\n
B\u1ea5m v\u00e0o Start<\/strong>, nh\u1eadp cmd<\/code>, nh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0o Command Prompt<\/strong>, v\u00e0 ch\u1ecdn Ch\u1ea1y v\u1edbi quy\u1ec1n qu\u1ea3n tr\u1ecb vi\u00ean<\/strong>.<\/li>\n
Ch\u1ea1y t\u1eebng l\u1ec7nh sau m\u1ed9t l\u1ea7n, nh\u1ea5n Enter<\/strong> sau m\u1ed7i l\u1ec7nh:<\/li>\n<\/ul>\nnetsh winsock reset<\/code><\/pre>\nnetsh int ip reset<\/code><\/pre>\nipconfig \/release<\/code><\/pre>\nipconfig \/flushdns<\/code><\/pre>\nipconfig \/renew<\/code><\/pre>\nipconfig \/registerdns<\/code><\/pre>\n\n\u0110\u00f3ng Command Prompt v\u00e0 m\u1edf l\u1ea1i m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n<\/strong>.<\/li>\n Sau khi kh\u1edfi \u0111\u1ed9ng l\u1ea1i, h\u00e3y th\u1eed k\u1ebft n\u1ed1i v\u00e0o m\u1ea1ng.<\/li>\n<\/ul>\nK\u1ebft qu\u1ea3 mong \u0111\u1ee3i: Windows nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ecba ch\u1ec9 IP m\u1edbi v\u00e0 k\u1ebft n\u1ed1i b\u00ecnh th\u01b0\u1eddng. N\u1ebfu b\u1ea1n th\u1ea5y “Truy c\u1eadp b\u1ecb t\u1eeb ch\u1ed1i” tr\u00ean b\u1ea5t k\u1ef3 l\u1ec7nh n\u00e0o, h\u00e3y x\u00e1c nh\u1eadn r\u1eb1ng b\u1ea1n \u0111\u00e3 m\u1edf Command Prompt v\u1edbi quy\u1ec1n qu\u1ea3n tr\u1ecb vi\u00ean (b\u01b0\u1edbc 1).<\/p>\n \u0110\u1ed5i m\u1ea1ng l\u01b0\u1edbi sang ri\u00eang t\u01b0<\/h2>\nWindows \u0111\u00f4i khi s\u1ebd ng\u0103n ch\u1eb7n k\u1ebft n\u1ed1i to\u00e0n di\u1ec7n khi m\u1ea1ng \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u00e0 C\u00f4ng c\u1ed9ng. Thay \u0111\u1ed5i n\u00f3 sang Ri\u00eang t\u01b0 c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 x\u00e1c th\u1ef1c v\u1edbi m\u1ed9t s\u1ed1 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn.<\/p>\n \nK\u1ebft n\u1ed1i v\u00e0o m\u1ea1ng l\u01b0\u1edbi (d\u00f9 n\u00f3 cho th\u1ea5y l\u1ed7i, ti\u1ebfp t\u1ee5c – b\u1ea1n c\u00f3 th\u1ec3 c\u00f3 k\u1ebft n\u1ed1i m\u1ed9t ph\u1ea7n).<\/li>\n M\u1edf C\u00e0i \u0111\u1eb7t > M\u1ea1ng v\u00e0 Internet > Wi-Fi.<\/li>\n Nh\u1ea5p v\u00e0o t\u00ean m\u1ea1ng \u0111\u00e3 k\u1ebft n\u1ed1i.<\/li>\n Trong ph\u1ea7n Lo\u1ea1i m\u1ea1ng<\/strong>, ch\u1ecdn M\u1ea1ng ri\u00eang<\/strong>.<\/li>\n<\/ul>\n<\/figure>\n\nNg\u1eaft k\u1ebft n\u1ed1i m\u1ea1ng v\u00e0 k\u1ebft n\u1ed1i l\u1ea1i.<\/li>\n<\/ul>\nC\u1eadp nh\u1eadt ho\u1eb7c quay l\u1ea1i tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n Wi-Fi<\/h2>\nM\u1ed9t b\u1ea3n c\u1eadp nh\u1eadt tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n sai l\u1ea7m l\u00e0 m\u1ed9t k\u1ebb th\u00f9 th\u01b0\u1eddng xuy\u00ean sau khi Windows Update ch\u1ea1y. B\u1ea1n c\u00f3 th\u1ec3 th\u1eed c\u1ea3 hai h\u01b0\u1edbng – c\u1eadp nh\u1eadt \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c s\u1eeda l\u1ed7i m\u1edbi h\u01a1n ho\u1eb7c quay l\u1ea1i \u0111\u1ec3 tr\u00e1nh m\u1ed9t s\u1eeda l\u1ed7i b\u1ecb h\u1ecfng.<\/p>\n C\u1eadp nh\u1eadt tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n<\/h3>\n\nB\u1ea5m chu\u1ed9t ph\u1ea3i v\u00e0o Start > Device Manager.<\/li>\n Thi\u1ebft b\u1ecb m\u1ea1ng<\/li>\n Nh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0o b\u1ed9 \u0111i\u1ec1u h\u1ee3p kh\u00f4ng d\u00e2y v\u00e0 ch\u1ecdn C\u1eadp nh\u1eadt tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n<\/strong>.<\/li>\n Ch\u1ecdn T\u00ecm t\u1ef1 \u0111\u1ed9ng c\u00e1c tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n<\/strong>.<\/li>\n C\u00e0i \u0111\u1eb7t b\u1ea5t k\u1ef3 b\u1ea3n c\u1eadp nh\u1eadt c\u00f3 s\u1eb5n n\u00e0o v\u00e0 kh\u1edfi \u0111\u1ed9ng l\u1ea1i.<\/li>\n<\/ul>\nPh\u1ee5c h\u1ed3i t\u00e0i x\u1ebf<\/h3>\n\nNh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0o b\u1ed9 \u0111i\u1ec1u h\u1ee3p kh\u00f4ng d\u00e2y c\u1ee7a b\u1ea1n \u1edf ph\u1ea7n Device Manager v\u00e0 ch\u1ecdn Th\u00e0nh ph\u1ea7n<\/strong>.<\/li>\n Nh\u1ea5p v\u00e0o th\u1ebb Driver<\/strong>.<\/li>\n Nh\u1ea5p v\u00e0o n\u00fat Roll Back Driver<\/strong> (n\u1ebfu n\u00fat n\u00e0y b\u1ecb \u1ea9n \u0111i th\u00ec kh\u00f4ng c\u00f3 phi\u00ean b\u1ea3n tr\u01b0\u1edbc \u0111\u00f3 \u0111\u1ec3 quay l\u1ea1i).<\/li>\n<\/ul>\n<\/figure>\n\nCh\u1ecdn l\u00fd do khi \u0111\u01b0\u1ee3c h\u1ecfi v\u00e0 nh\u1ea5p v\u00e0o Yes<\/strong>.<\/li>\n Kh\u1edfi \u0111\u1ed9ng l\u1ea1i m\u00e1y t\u00ednh v\u00e0 th\u1eed k\u1ebft n\u1ed1i l\u1ea1i.<\/li>\n<\/ul>\nDisable IPv6 tr\u00ean b\u1ed9 \u0111i\u1ec1u h\u1ee3p Wi-Fi<\/h2>\nM\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb \u0111\u1ecbnh tuy\u1ebfn v\u00e0 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet c\u00f3 c\u1ea5u h\u00ecnh IPv6 kh\u00f4ng ch\u00ednh x\u00e1c khi\u1ebfn Windows g\u1eb7p l\u1ed7i khi th\u1ef1c hi\u1ec7n giao ti\u1ebfp m\u1ea1ng. B\u1eadt t\u1eaft IPv6 tr\u00ean b\u1ed9 \u0111i\u1ec1u h\u1ee3p m\u1ea1ng s\u1ebd bu\u1ed9c Windows s\u1eed d\u1ee5ng ch\u1ec9 IPv4.<\/p>\n \nM\u1edf C\u00e0i \u0111\u1eb7t > M\u1ea1ng v\u00e0 Internet > C\u00e0i \u0111\u1eb7t m\u1ea1ng n\u00e2ng cao.<\/li>\n Nh\u1ea5p v\u00e0o **More adapter options** \u2014 ho\u1eb7c nh\u1ea5n ph\u00edm t\u1eaft Win + R<\/code>, nh\u1eadp ncpa.cpl<\/code>, v\u00e0 nh\u1ea5n Enter<\/strong>.<\/li>\n Nh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0o b\u1ed9 \u0111i\u1ec1u h\u1ee3p m\u1ea1ng Wi-Fi v\u00e0 ch\u1ecdn “Thi\u1ebft l\u1eadp”.<\/li>\n Trong danh s\u00e1ch \u0111\u00f3, t\u00ecm ki\u1ebfm Ph\u00e9p quy \u0111\u1ecbnh phi\u00ean b\u1ea3n Internet 6 (TCP\/IPv6)<\/strong> v\u00e0 b\u1ecf ch\u1ecdn \u00f4 vu\u00f4ng \u1edf tr\u01b0\u1edbc n\u00f3.<\/li>\n<\/ul>\n<\/figure>\n\nNh\u1ea5n v\u00e0o n\u00fat OK.<\/li>\n Ng\u1eaft k\u1ebft n\u1ed1i v\u00e0 k\u1ebft n\u1ed1i l\u1ea1i m\u1ea1ng.<\/li>\n<\/ul>\nL\u01b0u \u00fd: N\u1ebfu v\u1ea5n \u0111\u1ec1 \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft b\u1eb1ng c\u00e1ch n\u00e0y, th\u00ec s\u1ef1 c\u1ed1 n\u1eb1m \u1edf c\u1ea5u h\u00ecnh IPv6 c\u1ee7a b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn. B\u1ea1n c\u00f3 th\u1ec3 t\u1eaft IPv6 ho\u1eb7c \u0111\u0103ng nh\u1eadp v\u00e0o trang qu\u1ea3n tr\u1ecb vi\u00ean c\u1ee7a b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 t\u1eaft IPv6 \u0111\u1ec3 s\u1eeda ch\u1eefa n\u00f3 t\u1ea1i ngu\u1ed3n g\u1ed1c.<\/p><\/blockquote>\n C\u00e0i \u0111\u1eb7t DNS t\u1ef1 \u0111\u1ed9ng<\/h2>\n\u0110\u1ecbnh danh t\u1ef1 \u0111\u1ed9ng DNS c\u00f3 th\u1ec3 th\u1ea5t b\u1ea1i \u0111\u00f4i khi. \u0110i\u1ec3m \u0111\u1ebfn Windows v\u00e0o m\u1ed9t m\u00e1y ch\u1ee7 DNS c\u00f4ng c\u1ed9ng tin c\u1eady s\u1ebd b\u1ecf qua v\u1ea5n \u0111\u1ec1 ho\u00e0n to\u00e0n.<\/p>\n \nNh\u1ea5n Win + R<\/code>, nh\u1eadp ncpa.cpl<\/code>, v\u00e0 nh\u1ea5n Enter<\/strong>.<\/li>\n Nh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0o b\u1ed9 \u0111i\u1ec1u h\u1ee3p Wi-Fi<\/strong> v\u00e0 ch\u1ecdn T\u00ednh ch\u1ea5t<\/strong>.<\/li>\n Nh\u1ea5p \u0111\u00fap v\u00e0o Internet Protocol Version 4 (TCP\/IPv4)<\/li>\n Ch\u1ecdn S\u1eed d\u1ee5ng \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7 DNS sau \u0111\u00e2y<\/strong>.<\/li>\n Xin vui l\u00f2ng nh\u1eadp n\u1ed9i dung c\u1ea7n d\u1ecbch.<\/li>\n<\/ul>\n\u2013 \u0110\u1ecba ch\u1ec9 DNS \u01b0u ti\u00ean:<\/strong> 8.8.8.8<\/code> \n \u2013 \u0110\u1ecba ch\u1ec9 DNS thay th\u1ebf:<\/strong> 8.8.4.4<\/code><\/p>\n <\/figure>\n\nK\u1ebft n\u1ed1i l\u1ea1i m\u1ea1ng.<\/li>\n<\/ul>\nC\u00e0i \u0111\u1eb7t l\u1ea1i to\u00e0n b\u1ed9 c\u00e0i \u0111\u1eb7t m\u1ea1ng<\/h2>\nL\u1ef1a ch\u1ecdn cu\u1ed1i c\u00f9ng n\u00e0y s\u1ebd x\u00f3a b\u1ecf t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 \u0111i\u1ec1u h\u1ee3p m\u1ea1ng v\u00e0 \u0111\u1eb7t l\u1ea1i to\u00e0n b\u1ed9 c\u00e1c th\u00e0nh ph\u1ea7n li\u00ean quan \u0111\u1ebfn m\u1ea1ng v\u1ec1 m\u1eb7c \u0111\u1ecbnh. S\u1eed d\u1ee5ng n\u00f3 khi m\u1ecdi gi\u1ea3i ph\u00e1p kh\u00e1c \u0111\u1ec1u th\u1ea5t b\u1ea1i.<\/p>\n \nM\u1edf C\u00e0i \u0111\u1eb7t > M\u1ea1ng v\u00e0 Internet > C\u00e0i \u0111\u1eb7t m\u1ea1ng n\u00e2ng cao.<\/li>\n Nh\u1ea5p xu\u1ed1ng v\u00e0 nh\u1ea5p v\u00e0o Reset m\u1ea1ng<\/strong>.<\/li>\n \u0110\u1ecdc th\u00f4ng b\u00e1o c\u1ea3nh b\u00e1o (t\u1ea5t c\u1ea3 m\u1eadt kh\u1ea9u Wi-Fi v\u00e0 c\u1ea5u h\u00ecnh VPN s\u1ebd b\u1ecb x\u00f3a).<\/li>\n Nh\u1ea5n Nh\u1eadp l\u1ea1i ngay b\u00e2y gi\u1edd<\/strong>.<\/li>\n<\/ul>\n<\/figure>\n\nNh\u1ea5n v\u00e0o Yes<\/strong> \u0111\u1ec3 x\u00e1c nh\u1eadn.<\/li>\n Windows s\u1ebd t\u1ef1 \u0111\u1ed9ng kh\u1edfi \u0111\u1ed9ng l\u1ea1i sau 5 ph\u00fat (ho\u1eb7c ngay l\u1eadp t\u1ee9c khi b\u1ea1n nh\u1ea5p v\u00e0o Kh\u1edfi \u0111\u1ed9ng l\u1ea1i b\u00e2y gi\u1edd<\/strong>).<\/li>\n Sau khi kh\u1edfi \u0111\u1ed9ng l\u1ea1i, h\u00e3y k\u1ebft n\u1ed1i l\u1ea1i m\u1ea1ng Wi-Fi v\u00e0 nh\u1eadp l\u1ea1i m\u1eadt kh\u1ea9u.<\/li>\n<\/ul>\nH\u01b0\u1edbng d\u1eabn v\u00e0 Ch\u1ea9n \u0111o\u00e1n l\u1ed7i<\/h2>\n L\u1ed7i xu\u1ea5t hi\u1ec7n sau m\u1ed7i l\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i<\/h3>\nT\u00e0i kho\u1ea3n m\u1ea1ng c\u1ee7a b\u1ea1n b\u1ecb l\u1ed7i li\u00ean t\u1ee5c. M\u1edf Tr\u00ecnh qu\u1ea3n l\u00fd thi\u1ebft b\u1ecb<\/strong>, nh\u1ea5p ph\u1ea3i v\u00e0o b\u1ed9 \u0111i\u1ec1u h\u1ee3p kh\u00f4ng d\u00e2y, ch\u1ecdn X\u00f3a thi\u1ebft b\u1ecb<\/strong>, ki\u1ec3m tra X\u00f3a ph\u1ea7n m\u1ec1m tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n cho thi\u1ebft b\u1ecb n\u00e0y<\/strong>, v\u00e0 kh\u1edfi \u0111\u1ed9ng l\u1ea1i. Windows s\u1ebd t\u1ef1 \u0111\u1ed9ng c\u00e0i \u0111\u1eb7t l\u1ea1i tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n m\u1edbi khi m\u00e1y t\u00ednh kh\u1edfi \u0111\u1ed9ng l\u1ea1i.<\/p>\n “Roll Back Driver” b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a<\/h3>\nC\u00f3 phi\u00ean b\u1ea3n tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n duy nh\u1ea5t \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t. T\u1ea3i phi\u00ean b\u1ea3n tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n m\u1edbi nh\u1ea5t tr\u1ef1c ti\u1ebfp t\u1eeb trang h\u1ed7 tr\u1ee3 c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t laptop (Dell, HP, Lenovo, ASUS,…) ho\u1eb7c t\u1eeb trang web c\u1ee7a Intel\/Qualcomm\/Broadcom, sau \u0111\u00f3 ch\u1ea1y file c\u00e0i \u0111\u1eb7t th\u1ee7 c\u00f4ng.<\/p>\n L\u1ed7i ch\u1ec9 xu\u1ea5t hi\u1ec7n tr\u00ean m\u1ed9t m\u1ea1ng c\u1ee5 th\u1ec3<\/h3>\nV\u1ea5n \u0111\u1ec1 n\u00e0y g\u1ea7n nh\u01b0 ch\u1eafc ch\u1eafn l\u00e0 do h\u1ed3 s\u01a1 m\u1ea1ng b\u1ecb l\u1ed7i. S\u1eed d\u1ee5ng Fix #1 (B\u1ecf qu\u00ean v\u00e0 K\u1ebft n\u1ed1i l\u1ea1i) v\u00ec n\u00f3 l\u00e0 gi\u1ea3i ph\u00e1p \u0111\u01b0\u1ee3c nh\u1eafm m\u1ee5c ti\u00eau cho c\u00e1c s\u1ef1 c\u1ed1 m\u1ea1ng \u0111\u01a1n gi\u1ea3n.<\/p>\n Kh\u00f4ng c\u00f3 g\u00ec ho\u1ea1t \u0111\u1ed9ng v\u00e0 b\u1ea1n th\u1ea5y m\u1ed9t tam gi\u00e1c v\u00e0ng tr\u00ean b\u1ed9 \u0111i\u1ec1u h\u1ee3p \u1edf Device Manager<\/h3>\nM\u1ed9t d\u1ea5u ch\u1ea5m h\u1ecfi m\u00e0u v\u00e0ng c\u00f3 ngh\u0129a l\u00e0 l\u1ed7i ph\u1ea7n c\u1ee9ng ho\u1eb7c tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n. H\u00e3y th\u1eed g\u1ee1 b\u1ecf to\u00e0n b\u1ed9 tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n (\u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 \u1edf tr\u00ean). N\u1ebfu d\u1ea5u tam gi\u00e1c v\u1eabn c\u00f2n sau khi reinstall tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n, th\u00ec card Wi-Fi c\u00f3 th\u1ec3 \u0111ang g\u1eb7p v\u1ea5n \u0111\u1ec1, b\u1ea1n n\u00ean s\u1eed d\u1ee5ng m\u1ed9t adapter Wi-Fi qua USB nh\u01b0 gi\u1ea3i ph\u00e1p t\u1ea1m th\u1eddi trong l\u00fac t\u00ecm hi\u1ec3u th\u00eam.<\/p>\n M\u1ea1ng Ethernet ho\u1ea1t \u0111\u1ed9ng nh\u01b0ng Wi-Fi kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng<\/h3>\nX\u00e1c nh\u1eadn v\u1ea5n \u0111\u1ec1 n\u00e0y ch\u1ec9 x\u1ea3y ra v\u1edbi b\u1ed9 \u0111i\u1ec1u h\u1ee3p kh\u00f4ng d\u00e2y ho\u1eb7c tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n c\u1ee7a n\u00f3. Fokus v\u00e0o c\u00e1c s\u1eeda l\u1ed7i #6 v\u00e0 #9, v\u00e0 ki\u1ec3m tra xem c\u1ea3 b\u0103ng t\u1ea7n 2,4 GHz v\u00e0 5 GHz c\u1ee7a router \u0111\u1ec1u th\u1ea5t b\u1ea1i hay ch\u1ec9 m\u1ed9t trong s\u1ed1 ch\u00fang.<\/p>\n L\u1ed7i xu\u1ea5t hi\u1ec7n sau b\u1ea3n c\u1eadp nh\u1eadt ng\u00e0y 12 th\u00e1ng 4 n\u0103m 2026 (KB5083769)<\/h3>\nC\u1eadp nh\u1eadt t\u00edch l\u0169y th\u00e1ng 4 n\u0103m 2026 bao g\u1ed3m c\u00e1c thay \u0111\u1ed5i trong C\u00e0i \u0111\u1eb7t v\u00e0 Th\u01b0 vi\u1ec7n File c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng gi\u00e1n ti\u1ebfp \u0111\u1ebfn h\u00e0nh vi m\u1ea1ng tr\u00ean m\u1ed9t s\u1ed1 h\u1ec7 th\u1ed1ng. N\u1ebfu l\u1ed7i xu\u1ea5t hi\u1ec7n sau khi c\u00e0i \u0111\u1eb7t KB5083769, h\u00e3y th\u1eed quay l\u1ea1i b\u1ea3n c\u1eadp nh\u1eadt qua C\u00e0i \u0111\u1eb7t<\/strong> > C\u1eadp nh\u1eadt Windows<\/strong> > L\u1ecbch s\u1eed c\u1eadp nh\u1eadt<\/strong> > Kh\u00f4i ph\u1ee5c c\u00e1c b\u1ea3n c\u1eadp nh\u1eadt<\/strong>, ho\u1eb7c ki\u1ec3m tra trang v\u1ea5n \u0111\u1ec1 \u0111\u01b0\u1ee3c bi\u1ebft c\u1ee7a Microsoft \u0111\u1ec3 phi\u00ean b\u1ea3n Windows 11 c\u1ee7a b\u1ea1n c\u00f3 b\u1ea5t k\u1ef3 gi\u1ea3i ph\u00e1p t\u1ea1m th\u1eddi n\u00e0o.<\/p>\n K\u1ebft th\u00fac<\/h2>\n\u0110\u00e1nh d\u1ea5u m\u1ea1ng (S\u1eeda l\u1ed7i #1) s\u1ebd lo\u1ea1i b\u1ecf l\u1ed7i n\u00e0y cho ph\u1ea7n l\u1edbn ng\u01b0\u1eddi d\u00f9ng trong v\u00f2ng 30 gi\u00e2y n\u00ean h\u00e3y th\u1eed tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p kh\u00e1c. N\u1ebfu l\u1ed7i v\u1eabn ti\u1ebfp t\u1ee5c xu\u1ea5t hi\u1ec7n sau khi kh\u1edfi \u0111\u1ed9ng l\u1ea1i, vi\u1ec7c c\u00e0i \u0111\u1eb7t l\u1ea1i b\u1ed9 \u0111i\u1ec1u khi\u1ec3n (Fix #6) th\u01b0\u1eddng l\u00e0 gi\u1ea3i ph\u00e1p v\u0129nh vi\u1ec5n.<\/p>\n T\u00ecnh tr\u1ea1ng l\u1ed7i li\u00ean t\u1ee5c t\u1ed3n t\u1ea1i sau khi th\u1ef1c hi\u1ec7n reset to\u00e0n b\u1ed9 m\u1ea1ng l\u00e0 \u0111i\u1ec1u \u0111\u00e1ng \u0111\u01b0\u1ee3c xem x\u00e9t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 ph\u1ea7n c\u1ee9ng ho\u1eb7c, \u00edt ph\u1ed5 bi\u1ebfn h\u01a1n, d\u1ea5u hi\u1ec7u c\u1ee7a malware can thi\u1ec7p v\u00e0o c\u00e1c th\u00e0nh ph\u1ea7n m\u1ea1ng tr\u01b0\u1edbc khi ch\u1ea1y m\u1ed9t l\u1ea7n qu\u00e9t to\u00e0n di\u1ec7n v\u1edbi Windows Defender. Tr\u01b0\u1edbc ti\u00ean h\u00e3y ch\u1ea1y l\u1ec7nh sfc \/scannow<\/code> trong Command Prompt \u0111\u01b0\u1ee3c n\u00e2ng cao \u0111\u1ec3 s\u1eeda ch\u1eefa b\u1ea5t k\u1ef3 t\u1ec7p h\u1ec7 th\u1ed1ng b\u1ecb h\u01b0 h\u1ecfng n\u00e0o c\u00f3 th\u1ec3 \u0111ang g\u00f3p ph\u1ea7n v\u00e0o v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n<\/div>\n<\/div>\n <\/body><\/html><\/p>\n \nNgu\u1ed3n: Helpdeskgeek<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" L\u1ed7i “Windows kh\u00f4ng th\u1ec3 k\u1ebft n\u1ed1i \u0111\u1ebfn m\u1ea1ng n\u00e0y” xu\u1ea5t hi\u1ec7n khi b\u1ea1n nh\u1ea5p v\u00e0o m\u1ea1ng Wi-Fi v\u00e0 Windows th\u1ea5t b\u1ea1i trong vi\u1ec7c ho\u00e0n th\u00e0nh k\u1ebft n\u1ed1i, th\u01b0\u1eddng sau khi thay \u0111\u1ed5i m\u1eadt kh\u1ea9u, c\u1eadp nh\u1eadt Windows ho\u1eb7c m\u1ed9t l\u1ed7i tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n l\u00e0m h\u1ecfng h\u1ed3 s\u01a1 m\u1ea1ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef. Tr\u01b0\u1edbc khi B\u1eaft \u0110\u1ea7u […]<\/p>\n","protected":false},"author":1,"featured_media":11521,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[506,513],"tags":[],"class_list":["post-11529","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thu-thuat","category-windows"],"_links":{"self":[{"href":"https:\/\/tct.vn\/blog\/wp-json\/wp\/v2\/posts\/11529","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tct.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tct.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tct.vn\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tct.vn\/blog\/wp-json\/wp\/v2\/comments?post=11529"}],"version-history":[{"count":0,"href":"https:\/\/tct.vn\/blog\/wp-json\/wp\/v2\/posts\/11529\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tct.vn\/blog\/wp-json\/wp\/v2\/media\/11521"}],"wp:attachment":[{"href":"https:\/\/tct.vn\/blog\/wp-json\/wp\/v2\/media?parent=11529"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tct.vn\/blog\/wp-json\/wp\/v2\/categories?post=11529"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tct.vn\/blog\/wp-json\/wp\/v2\/tags?post=11529"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}