Nowadays, many mobile phone brands have WiFi disconnection problems, especially after updating to new systems. For example, after Xiaomi’s MIUI10 update and upgrade, many users have reported WiFi disconnection problems. Not only Xiaomi but also Huawei's EMUI9.0 and Apple's iOS12 also have WiFi disconnection problems after the update.
Reason for disconnection:WiFi disconnection is a problem with the mobile phone, not the signal. The default in the mobile phone is a high-frequency receiver, and The routers we generally use receive signals at the 2.4g frequency, so the received signal will be poor. Another reason is the problem of the router. The router at home generally supports the IPv4 protocol, but now the new version supports IPv6. It also supports IPv4 but is unstable, so there will be WiFi interruption problems. (Recommended learning:PHP video tutorial)
Solution: One is to change the mobile phone reception method, in the mobile phone's [Settings]-[My Device]-[All Parameters] - [Developer Options] - [Use older version of DHCP client].
The mobile phone version is different, the specific operation steps may be different, but remember to "use the old version of DHCP". Because the old version of DHCP happens to be adapted to the IPv4 protocol, the signal will become full immediately. The other is to change to a dual-band router, which can connect you to two WiFis at the same time. If it is an old mobile phone, it can only connect to the 2.4g frequency. If your mobile phone is a newer model, it can receive the 2.4g frequency and the 5g frequency at the same time. Obviously, the 5g frequency will definitely have faster network speeds.
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