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Vyacheslav Grachunov2022-02-21 20:42:21
Android
Vyacheslav Grachunov, 2022-02-21 20:42:21

Why won't my smartphone connect to the Wi-Fi router?

Xiaomi Mi 9 перестал подключаться к роутеру - вечные попытки подключения. К другому роутеру подключается, а также все остальные устройства также нормально подключаются ко всем. Роутер имеет 2 диапазона - 2,4 и 5 ГГц - не подключается к обоим. При этом, если задать пользовательские настройки сети в телефоне, то подключается, но IP получается жестко прописанным и могут возникнуть конфликты, если роутер выдаст этот же ip другому устройству. По сути телефон не может получить адрес по DHCP конкретно с этого роутера. До сегодняшнего дня все работало. Как можно исправить?

Конфигурация такая: есть роутер MGTS_XXXX, от которого очень слабый Wi-Fi, к нему по проводу подключен в режиме точки доступа роутер ASUS, distributing the Internet already at a normal speed. So it connects to MGTS_XXXX normally, but not to ASUS. The settings for MGTS_XXXX are provider-specific, and ASUS stupidly distributes from it. No specific settings with filtering and other things.

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4 answer(s)
A
AlexVWill, 2022-02-21
@AlexVWill

How can I fix it?

Try doing a factory reset.

R
rPman, 2022-02-21
@rPman

What happened yesterday, after which such problems began? In the vast majority of cases, a solution will be found if the root cause is understood.
If the device machine cannot receive a response via dhcp but works when you specify ip manually , then the only logical explanation is that there is a device on the network with the same mac address.
True, the reason is most likely something else, for example, you are connecting to the wrong router or the setting on the router was for this device to a fixed ip address that matches another device on the network

O
Oleg, 2022-02-22
@402d

Why he began to be weird can be searched for a long time. The question is whether such a waste of time is worth it.
Asus old? a router on an input as I understand from provider?
Has miui been updated on the phone for a long time?
Is it worth something like an adguard?
Honestly, I would just change the provider's router to my own

D
Drno, 2022-02-22
@Drno

Leave 1 wifi, on 1 router. and try

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