WiFi is connected but there is an exclamation mark

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PHP Chinese website brings you the solution to the problem that the wifi is connected but there is an exclamation mark: 1. Check whether the router and broadband line interfaces are loose; 2. Double-click to open the "Control Panel" of the computer, and then open the "Network and Sharing Center" ”; 3. Click “Change Adapter Settings”, and then select the buttons “Obtain IP address automatically” and “Obtain DNS server address automatically”.