The mobile phone can't connect to WLAN, which means there is a verification error. What is the reason?

There are several situations in which the mobile phone cannot connect to WLAN(Wi-Fi) normally:

When 1.WiFi is turned on, the wireless network cannot be scanned, but others can search. The solution is as follows:

1), and the WiFi signal is set to be hidden. After contacting the network management to obtain the wireless signal name, manually enter the wireless signal name and password connection in the mobile phone settings -WLAN- other networks.

2), router failure, try to restart the router.

2. Prompt that the connection to WiFi is denied. Fault phenomenon: others can connect, but they can't connect to WiFi, and the connection is rejected. The solution is as follows:

1), the router device may have turned on wireless MAC address filtering, so it is recommended to contact the network management to add the mobile phone MAC address. The MAC address can be viewed in Settings-About this machine;

2), router failure, try to restart the router.

3. The mobile phone connected to WiFi prompt has been saved, but the connection failed. The solution is as follows:

1), which indicates that the encryption method and password of the WiFi signal or the signal channel of the router have been modified. It is recommended to reset the password and encryption type of the router. Terminals connected to this network need to ignore this network and re-enter the password to connect.

2), router failure, try to restart the router.