cant login to wotlk realms

hello ,
when i tape my login , password and get pass the handshaking , it shows finished then it stays like this for seconds then the realm lists (wotlk : icecrow,lorederon,....) pops up , when i choose one of them it says 'connecting to game server'' stays like this for 10 seconds then the realm list pops up again....
what's the problem.?
my internet is good , my set realm is also good , got no firewall or antivirus or anything like that .... also noticed other people got the same problem so the problme must come from YOU WARMANE , fix it please