Why does wifi have an exclamation mark?

The reasons why wifi has an exclamation mark: 1. There is a problem with the connection; 2. Some functions of the router are abnormal; 3. Network failure; 4. Abnormal handshake; 5. The computer DNS information has been tampered with; 6. The current WiFi network is not connected to the Internet; 7. , The broadband is in arrears or the broadband line is interrupted; 8. The network cable is not plugged in properly, etc. This topic provides you with relevant articles, downloads, and course content for you to download and experience for free.