Connect to WLAN and Internet.

Your computer should be in good condition. If you see this icon, you can access QQ but cannot open web pages. This problem may be related to a specific application or website, or to the firewall IP protocol that prevents you from connecting to the Internet. You can use security tools such as 360 or directly download the CTP/IP protocol repair tool to fix it https://pan.baidu.com/s/1pNkO4Uf.

Connect to WLAN, but no Internet connection is detected (also known as limited connection).

This icon means that your Windows computer is connected to the router but not to the Internet network. 1. Check whether other devices connected to the router can connect to the Internet normally. If none of them can connect to the Internet, you need to check whether the upper switch or router, the cat is working properly. 2. If other devices can connect to the Internet, restart the router or restore the router to factory settings to avoid someone hacking your network and setting network restrictions on the router.

The device is not working properly and WIFI is not turned on.

Click the small icon in the lower right corner to see the WIFI switch and flight mode. Click to turn on the WIFI switch.

This state means that the driver is abnormal.

Right-click "This PC" - "Manage" - "Device Management" on the desktop to check whether there is an exclamation mark device with no driver installed. Go to this website to download the driver for the corresponding model and install it.