Check with Comcast... when they were doing maintenance in our area, they were resetting equipment, which caused most users to need to reset Modems in our area. This went on for several months. At the time I was working with some people in Japan and kept getting bounced around 2 every morning my time, otherwise, I would not have noticed. Comcast did not offer any help, but they did give me a discount for the time this was going on. Most users are not online overnight, so it is a good time to do maintenance.

ratscloset
aka John