Currently Being ModeratedAug 25, 2012 8:44 AM (in response to pellky)
I have the exact same problem. Today I tried to port-forward the specified ports from the apple support page: http://support.apple.com/kb/HT4314. Did not help. I hope someone has a fix for this!
Currently Being ModeratedJan 22, 2013 1:56 AM (in response to pellky)
I got the same problem here with my MacBook Pro (OSX 10.8.1)
I've also tried editing the host file which most people said it work, but it didn't work on mine.
Any update on the problem??