Nostalrius Begins - Quality wow vanilla realm (1.12)

everytime i try log in it disconnects right away tryed with 4 different accs

I seem to have the same problem. Although my server is set to "Test Realm - IsVV2" I think this is the problem. Don't know how to change it though..

during connecting you can press escape, that should bring you back to the realmselection screen.
or you can change the realmlist to add the realm name like so:
SET Realmname "Nostalrius Begins"
or, in the beginner's guide there is a tool available under point 4 that will change the realmlist for you.