1. Whether the client ping service has been pinged. Can I change the server computer name?
2. Whether the server has a firewall. If it's open. You can turn it off. Or add ports manually.
3. Start-Program -T3. . . -UFIDA T3- Server Settings. Connect to the server.
4. If the above settings are not enough. Bind the server computer name and IP in the hosts file.
If all the above settings are ok. There should be no problem.