2. confirm whether the wireless network device in the device manager starts abnormally->; Console->; Device Manager, check whether the Network Adapter has an exclamation point. The green box below is a normal network card, and the exclamation point in the red box is an abnormal network card.

If there is an exclamation point on the device, you can download and install the latest network card driver in official website first.

3, open the network and * * * enjoy the center for troubleshooting.

There is no exclamation point in the device manager, which means that the network card should be normal. This problem may be caused by system settings or other network devices.

Start-> Control panel->; Internet and * * * enjoyment center. When you enter the network and the * * * enjoyment center, you can see the basic information of the network.

If there is an exclamation point or an X, you can click to perform network troubleshooting built into Windows.

4. Restore the network settings to the default values.

Start-> Search for programs and files, enter "cmd" and press Enter.

Click cmd to execute.

Enter netsh winsock reset and press enter.

You need to restart your computer.