Nostalrius Begins - Quality wow vanilla realm (1.12)

As soon as I type in my PW and hit login I get an immediate disconnect message. In fact, no matter what I enter for password it gives me that message. I have been playing the game just fine on the PVE server and now suddenly it doesn't work. I've tried fiddling with the realmlist.WTF ideas but nothing is working. Any idea what's causing this? Also tried deleting WDB and WTF no to effect.