Start the laptop with battery, disable the local connection, turn on the wireless network card, connect the power supply, run cmd, enter: ping 127.0.0.1 7. Run ping 127.0.0.1 to test the loopback address of the network adapter. Check whether the wireless network is normal. If disconnection occurs or the link fails, check the long ping test window. If the ping test is normal, you can check for problems such as wireless signals.
1. For the problem that the phone cannot connect to wifi, first open the WiFi setting of the phone and select advanced Settings in the WiFi setting.
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2. In advanced Settings, select the adjustment domain 13 and use static IP address √.
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3. Set the IP static address
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IP Static address: 192.168.1.xxx(1 to 255)
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Gateway: 192.168.1.1 or 192.168.0.1
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The network mask is 255.255.255.0
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The domain name can be left blank. Press the menu key and select Save.
Check to see if the charger is broken