This is NOT a Comcast blocking issue. It is an authorization issue with HBO. When you go to the HBO go activation site and select Xbox360 or Samsung TV comcast is there but not for Roku. I have Comcast for Internet but DirectTV for TV. If there were a Direct TV option under Roku I could get it because it would check my direct TV account to see that I am a valid HBO subscriber. It is just a validation that you are a subscriber not anything to do with the actual data (port) being authorized. I can go on my comcast internet on my computer, go to HBO GO and tell it I am direct TV and it validates and works fine. HBO is the culprit. They do not have a selection for either Comcast or Direct TV for the Roku as your provider. Not sure who to complain to on this but there are three choices - Comcast, HBO, or Roku. Very dissapointing that HBO go is not on the Roku with direct TV or Comcast.
... View more