What happened when the computer said it could not connect to the server even though it had network

When your computer has a network connection, but cannot connect to the server, the following situations may occur:

1. DNS problem: It may be caused by DNS resolution problems. Try clearing the local DNS cache, which can be run in the command prompt window ipconfig /flushdns Command to clear the cache.
2. Firewall or security software prevents access: A firewall, anti-virus software, or other security settings may prevent your PC from connecting to specific servers. Check to make sure that programs or settings are not blocking the connection.
3. DL setting error: If you use the DL server to access the network, make sure that the proxy settings are correct and there are no configuration errors.
4. IP address conflict: There may be an IP address conflict, that is, multiple devices share the same IP address. You can try restarting the router and computer to get a new IP address again.
5. Router problem: Check whether the router is working properly, try restarting the router, and ensure that it is connected to the Internet properly.
6. Network configuration problem: Confirm whether the network configuration of the computer is correct, such as whether the subnet mask, default gateway and other settings are correct.
7. Target server problem: The target server may fail, be maintained, or be overloaded, resulting in failure to establish a connection. You can try to access the server through other devices or networks to verify that it is limited to your PC.
8. Network supplier problem: If the above methods are invalid, the network supplier may have a problem. Contact your network provider for technical support and report the problem to them.

If the problem still exists, it is recommended to contact a professional technical support personnel or network administrator to diagnose and solve the problem.