Nostalrius Begins - Quality wow vanilla realm (1.12)

After entering the username and password, the game goes through the handshake process and then immediately disconnects me from server.
worked fine for the last week or so, then today when i attempted to log in this issue started.
tried deleting the WDB folder, WTF folder, tried reseting the pass and also tried remove any ip lock that might have been on the account.
Any help with this would be appreciated.