1. Reasons:
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WiFi disconnected, dropped line, etc. is the problem of the mobile phone, not the signal problem, the default is a high frequency receiver in the mobile phone, and we generally use the router is 2.4g frequency to receive signals, so it will lead to poor reception signal. Another reason is the router problem, the home router generally supports IPv4 protocol, but now the new version supports IPv6, but also supports IPv4 but unstable, so there will be WiFi interruption problems.
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Second, the solution:
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One is to change the receiving method of the phone, in the phone's [Settings] -- [My device] -- [All parameters] -- [developer options] -- [Use an old DHCP client]. The specific steps may be different depending on the phone version, but remember to always \"use an older version of DHCP\". Because the old DHCP version is just adapted to the IPv4 protocol, the signal will immediately become full.
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The other is to change the dual-frequency router, you can connect two WiFi at the same time, if it is an old mobile phone, can only connect 2.4g frequency, if your mobile phone is a new model, you can receive 2.4g frequency and 5g frequency at the same time, obviously, 5g frequency is definitely faster
Xiaomi mobile phone wifi sometimes a second off and connected to the wifi signal is weak and unstable. Possible reasons and solutions for Xiaomi mobile phone not connecting to WiFi network:
1. First check whether the wireless router works properly, you can use other mobile phones or digital products to connect to the WIFI signal, if you can normally connect and surf the Internet, then generally speaking, the router can work normally.
2. Turn off the network by enabling the sleep state of the mobile phone. Check whether the option to turn off the network in the sleep state is enabled on the mobile phone. After a period of time, the mobile phone will be disconnected or cannot receive the background chat software. The possible cause is that the function of turning off the network in the sleep state is enabled by mistake.
3. If you use the router for a long time, the router may be suspended animation. Restart the wireless router.
4. The authentication type is inappropriate. Try to change the authentication type of the router. It is better to select the secure WPA2-PSK mode, and the following encryption algorithm is best to select AES.
5. The network Settings on the mobile phone or router are abnormal. Consider restoring router factory Settings and cell phone network Settings.