What should I do if my mobile phone cannot always connect to the Internet via wireless?

If you use a vivo phone, it means that the phone is connected to WiFi normally but cannot access the Internet. You can check the following:

1. Check the phone settings

Enter settings--WLAN , check whether the WiFi is successfully connected.

Go to Settings--Other Networks and Connections--Private DNS and check whether private DNS is set up. If it is turned on, it is recommended to set private DNS to off and try again.

Go to Settings--Security/Security & Privacy--More Security Settings--Trusted Credentials--System--Please turn on all options.

2. Check WiFi

Please compare whether other mobile phones connected to the same WiFi are normal, and confirm whether it is the WiFi or the mobile phone. If it is caused by WiFi, please restart the wireless router to check. Some public WiFi requires browser authentication before being able to connect to the Internet.

3. Check the networking permissions

Please enter iButler--Traffic Management/Traffic Monitor--Networking Management--WLAN--to enable the software networking permissions.

4. Check for environmental reasons

If the mobile phone is far away from the router, although it shows that there is a WiFi signal, it may not be able to access the Internet. It is recommended to adjust the distance between the mobile phone and the router before trying again. .

5. Reset network settings

Make a backup of WiFi and other data, go to settings--system management--backup and reset--reset network settings--reset settings , then use to view.

Note: Resetting network settings will clear WLAN, mobile data network, Bluetooth and other connection records; when using dual SIM cards, you need to select the corresponding SIM card.

6. Restore all settings (do this when you cannot see the reset network settings menu)

Enter Settings--System Management/More Settings--Backup and Reset --Restore all settings and follow the on-screen prompts.

Note: This operation will not delete software or files, but will only reset all setting options; for data security, important data can be backed up before operation.

7. Service center inspection

If the above method fails to solve the problem, please back up your mobile phone data in advance, bring your mobile phone and purchase voucher to the vivo customer service center for inspection. You can check the address and phone number of the nearest customer service center through this link: web link. In order to save valuable time, it is recommended to call the customer service center in advance to confirm relevant matters and understand the working hours.