1, Check the router Settings, please check the router manual, enter the routeCheck whether dual-frequency integration or multi-frequency integration is set. If yes, it is recommended to close and try again. Check the phone Settings ① Please go to Settings - battery - (more Settings) - check whether the sleep mode is enabled, if it is enabled, it is recommended to close the test.
2, try to change the environment: in the elevator, basement and other more closed environment may be stuck, you can go to the open outdoor to observe whether the mobile phone signal can return to normal. Confirm the situation of the mobile phone card: If the mobile phone card is a 2G card, the mobile phone card is worn, and the traffic limit of some operators' card packages may affect the Internet access, resulting in a delay in the Internet access.
3. Please check whether the same situation occurs in mobile phones using the same WLAN network. If the same situation occurs, the router may be abnormal. It is recommended that you restart the router, reset the router, or upgrade the router version. (Upgrade the router version: Generally, click Software Upgrade on the router Settings screen to upgrade to the latest version through Online Upgrade or Local Upgrade.)
4, Method 1: Setting - General -WLAN- Turn off the WLAN function, turn it off and then reconnect to WIFI. Use your phone to connect to WIFIAfter the initial connection is successful, the mobile phone will retain a network IP address assigned by the WIFI connection, which will be applied to the current WIFI, if there is no address conflict, then it should be able to surf the Internet normally, but if there is an IP conflict, you can use the above method to try to solve.
5, Android 11 models below: Enter the phone Settings -- Application and permissions/more Settings -- application management -- (top right corner "more" select "show system process") -- find WLAN-- click storage, select clear data and cache, and then reconnect to WiFi try (some models enter