Nostalrius Begins - Quality wow vanilla realm (1.12)

First of I'd like to say I am really enjoying the server so far (not that I have played that much...). However, I'm having some difficulties connecting. When logging in, the client automatically tries logging in to 'Test Realm 1 - Devs only', on which I'm not allowed of course so I keep disconnecting. A reinstall didn't fix this, any other suggestions?

Thanks a lot!