Can't log in / One Account - 2 Computers - Same Internet Connection

Good Afternoon Guys,

So I have 2 computers one is a laptop and the other one is a desktop. On the laptop I can log in fine and play for how many hours I want without any DC's or anything. On the desktop doesn't even login. I have tried everything, redownloading the game, moving the folder to a different location, admin, get it off read only, untick the launcher option, added the wow.exe to the firewall as an exception antivirus as well. Nothing works, tried to copy the folder from the laptop same thing. It goes Authenticating and Disconnected from the server.

I have been looking around the forum for answers and couldn't find a solution and that is the reason why I am posting, Might help someone else in the same situation.
Any help would be appreciated.

Best Regards,
NesquickPT