WotLK not being able to log in

[btnca]

so i just downloaded the wotlk client and tried logging in with my username and password and it comes up telling me it's unable to connect and to try again later - http://i.imgur.com/ZSrn53w.png the realmlist is set and i can't see anything else that would be causing this.

[skullatbash]

from where did you got that client? Warmane?