Cannot get in at all

Ok, so I haven't been able to get onto any server or log in at all as I have been receiving errors such as "Login Server Down" and "Cannot Connect please contact ...".
I've tried searching online about this and they're all saying to change realm list to "set realmlist logon.warmane.com" which i have done and something about changing a file in the WTF folder which i have also done. Any help will be appreciated :)
It usually says connecting for about 30 secs before i get the error btw

(It gives me the same error on ***** Wow's Wotlk client aswell as the warmane wotlk one)