I do enjoy reading the endless comments on this topic, they are quite entertaining. However, no one on here as addressed the obvious:Comcast WILL NOT ALLOW HBO GO on a Roku because you would be by-passing their ability to charge you a $10 monthly fee for their cable box. IT'S THAT SIMPLE, it has nothing to do with routers and such and it will not change, ever. That being said there are options: #1 hook your laptop to your tv (most people don't like this but it works and Comcast cannot change the technology that allows it) #2 Use the HBO GO APP for your tablet (IPAD or KINDLE) and hook the tablet to your tv, this is what I do and works perfect, its free and takes seconds to get an HD movie up and running or door #3 Use a Chromecast (or other such device) to get HBO, this requires up front $$$ but if you really want it, so be it. Lastly an FYI - Comcast has built in software that does not allow you to stream or connect via HDMI their Xfinity APP through a Tablet or phone so save your breath!