1. Check whether it is a wifi problem of the mobile phone. The method is to set the WLAN point of the mobile phone to connect to the network point and forget the password. Click on this network again-enter the correct password and try again (check the "Show Password" option when entering the password to see the entered password); If the signal is too weak (less than 2 frames), the connection cannot be made.

2. Turn off the WLAN switch in the taskbar of the mobile phone, and then turn on the WLAN again to search for the network connection test.

3, through the phone settings -WLAN- point you need to connect to the ">" on the right side of the network. Where-whether static IP is "on", if so, please turn off and restart the mobile phone connection to try.

4. Try to open the static IP, manually enter the information such as IP address, gateway, network mask and main domain server, and test the connection.

5. Connect with an id with strong wifi signal to enter the password test. If you can surf the internet normally, the problem of mobile phone will be ruled out. If the problem lies in the mobile phone, it is also necessary to detect whether it is a problem with the wifi network card or a program problem that prevents Internet access. Check whether the set wifi is correct first. Then check whether the system or wifi driver is normal. If necessary, go to official website to download the phone model of wifi driver cover the installation and try it.

6. Go to Settings-General-Restore Factory Settings-Restore all settings and try.

7. Check whether the wireless router hangs. Turn off the router power 10 seconds before turning on the power test.

8. Check whether the broadband signal is transmitted from the external network. The unstable signal of Bandai will also lead to the inability to access the Internet.

9. Finally, check whether the modem or router is normal. The method is to replace the good hardware test.