We have been having a similar problem for years, and it's recently gotten much worse. We have internet and basic cable. We don't play games, but I do stream an internet jazz station, and I do a lot of browsing. We'll occasionally watch a movie and youtube video. I have no issues with speed -- only complete loss of internet at random times, typically for 5-15 minutes. Interuptions happen mostly during the day. I've replaced both router and modem, both Comcast recommended/approved types.