Stuck at "Connected" / "Logging in to game server"

Hi,

I've been playing fine for at least 2 years except for the server wipe last year, and I am having trouble actually getting into the server.

It was totally fine until I got into a random heroics with my friends and after I gave gbok to everyone, I got heavy lag spikes and was disconnected from the server.

After that, I am unable to log back in since I am stuck in realm selection page.

I've erased my Cache folder couple of times, reseted my routers also. (Also tried to restart the computer)

But, none of the solutions online work.

Looking for help desperately.

Thanks.