I have BRSK broadband and it seems as though the forum is blocking the connection? Not sure if anyone can help?
What is the exact error message?
Probably needs the admin team to change some settings, but in the meantime can you confirm what you're trying to connect: PC/Mac/iphone/Android?
Just one device causing the problem or all of them?
Which web browser are you using? Safari is especially problematic
Have you checked whether BRSK are using any kind of adult filters? If they are, the forum software may see that as a proxy of some kind and block it