I've had Comcast for a little over a week. I've had non stop problems with trying to play league of legends. Everything else appears to be fine. But my 18mb download internet from AT&T performed significantly better than the 100mb internet I have with Comcast. A simple Google search showed me that hundreds of not thousands of others have experienced the same problem. Is there an actual solution? Hard to imagine Comcast would have such major issues with the most played pc game in the world.