OBVIOUSLY you are able to connect to post a new thread.... if troubles persist beyond that why not contact the site ADMIN directly instead of posting a thread about it.....NOT LIKE US DOPE users can fix your problem!!!
Some of us can, actually.
I'd had a similar problem a few months ago, could NOT connect to some MC online shops to save my frickin' LIFE. Could do it away from home, could do it via proxy, could not do it direct. Turned out that one of the servers on the way was reading our ISP's servers as spam servers and blocked us. At first the guy argued, but we showed him via traceroute that we were being blocked by a Sprint server in New York. He ate his words.
Push your ISP, they may not be blocking, but their servers may be being blocked.
Tracert is fun, and if you're working in Linux then so is the whois command from the terminal shell.
Oooo! Traceroute is available in Linux! Sudo apt-getting away...