If you are still unable to connect, you can try the following methods:
Method 1:
If the computer is equipped with a firewall, it may be caused by a firewall. At present, it is found that the following firewalls will make your WiFi useless: Avast, Nod32, 360 guardian LAN protection, coffee, AVG.
Method 2: If there is no other firewall, try to turn off the system firewall.
1) first press the start key to select the control panel, and press the start key +X to select the control panel under win8.
2) After opening the control panel, select the category in the upper right corner, and then select System and Security.
3) Click the system firewall.
4) Click on the left to open or close the firewall.
Method 3: Reload the driver.
1. Right-click my computer and select Device Manager.
2. Uninstall the wireless network card in Device Manager and scan the hardware driver again.
3. When the driver is installed, restart Cheetah WIFI to see if you can successfully surf the Internet.