I can't log in to the game properly.

So I've been playing on the Lordaeron server for awhile now, getting a few characters to 60 and now all of a sudden now when I log in I instantly get disconnected from the server the moment I get to character selection. Is there a solution for this issue?

It may not sound very helpfull but many errors in wow simply vanish when you wait a day or two and the game then works as if nothing has ever gone wrong.