Failed to resolve hostname issue

Ever since I got this new pc I have been unable to connect to teamspeak servers. I keep getting the message "Failed to resolve hostname" and I don't know why. teamspeak was working perfectly on my other pc so I don't know why it's not on this one. I have tried literally everything from flushing my dns on cmd to updating my drivers and changing settings. Help would be greatly appreciated thanks

Failed to resolve hostname issue