[Computer network failure] WiFi access is normal, but the Internet access is abnormal (in either case)

Today, my colleague took a notebook and said that WiFi connections are normal, but they cannot access the Internet. If you change the Unit's WiFi and the phone's shared WiFi, the Internet is not accessible.

First, I checked the IP address settings to check whether the IP address is specified. No.

Then cancel IPv6. The fault persists.

Check the IP address acquisition status. Everything is normal. You can get the address.

It's strange. What's going on?

 

Later I thought about whether it was the proxy server with IE. Once checked, a proxy server is set up.

The proxy server cannot be connected at all, and of course the webpage cannot be accessed. Check out the proxy settings. Everything is normal!

 

[And]

Last two weeks, similar issues. My colleague's wifi can be connected, but he cannot access the Internet. The payment is normal. Other Community owners can access the network normally.

Call 10011, provide the host name and ID card number, and then query the initial internet password. If you skip the WiFi connection, the problem still persists.

Finally, after inspection, the household network cable was broken by the dog in the home of the host.

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[Computer network failure] WiFi access is normal, but the Internet access is abnormal (in either case)