i cant enter the icecrown realm

hi im back to the game for some time but i cant enter to icecrown, i can log in and enter in any other server like lordareon but cant in icecrow say: accesing to a server game.. and a min later just goes back to the realm list, its happen with my 2 accounts, pls help

Could be ISP blocking the access to the server. Contact them, or try VPN.