Page Error

Ok its not a problem with the game but with the site.
I use Firefox and i try to login and its ok but if i try to enter in the forum it doesnt load the page, it says that it cant connect.
So i try it with internet explorer same problem, i cant enter in the forum, in clan system i enter fine, but in the forum i cant.
So i installed Opera now i can enter but with firefox or internte explorer i cant, i already clean cookies, i run ccleaner, but i cant enter with this 2 browsers.
Regards