If you use a vivo mobile phone, the WiFi is automatically disconnected, you can refer to the following methods:

1, check the mobile phone WiFi signal.

Please check whether the WiFi signal strength in the status bar of the mobile phone is weak. If it is weak, please move the location of the mobile phone or use other mobile phones to connect to this WiFi for comparison and judgment.

2. Check the router settings

Please check the router manual, enter the router settings, and see if dual-frequency integration or multi-frequency integration is set. If so, it is recommended to turn it off and try again.

3, check the phone settings

① Please go to Settings-Battery-(More Settings)-to see if "Sleep Mode" has been turned on. If it is turned on, it is recommended to turn it off before testing.

② Setting --WLAN? --? Advanced settings --WiFi sleep, change WLAN sleep policy to "never sleep".

Note: Android 10 and above models do not support setting WiFi sleep policy.

4. If the application consumes a lot of power in the background, the system will intelligently control the power consumption in the background to save power. At this time, it will affect the application networking. You can enter Settings-Battery-Background Power Consumption Management-Find the corresponding software-and allow high power consumption in the background.

5. Reset the network settings

Back up the data, enter Settings-System Management-Backup and Reset-Reset the network settings-Select the corresponding SIM card-Reset the settings, and then use it to view.

Note: Resetting the network settings will clear the connection records such as WLAN, mobile data network and Bluetooth; You need to select the corresponding SIM card for dual cards.

6. Restore all settings (do this when you can't see the Reset Network Settings menu)

You can enter Settings-System Management/More Settings-Backup and Reset/Restore Factory Settings-Restore All Settings-Restore, Restore Settings Options.

This operation will not delete the software or files; it will only reset all the setting options; For data security, important data can be backed up before operation.

Note: Enter the cloud service-device cloud backup-backup data type-system data-return-immediately back up some backup system settings and desktop layout; Cloud service-data synchronization-Turn on WLAN and Bluetooth to synchronize data to the cloud service.

7, service center testing

If the above methods fail to help recovery, it needs to be detected and handled by the customer service center. The address of the customer service center: Go to vivo official website /vivo Mall APP-- My-Service outlets/After-sales outlets-and select provinces and cities to inquire about the address of the customer service center;

Tips: It is recommended to bring relevant purchase vouchers (such as purchase invoice/warranty card/ID card) when you go, and call the staff of the service center in advance to ensure that the staff will go again during normal working hours to avoid empty running, and pay attention to safety on the way back and forth.