Bizarre problem here that started two days ago. I turn the plasma TV on, and the cable modem drops out (the greenlight for power and receive stay on, the green lights for send and connection drop out). I turn the TV off, 30 seconds later, the signal comes back. This is amazingly repeatable. It's a Motorola SB5200 (I think that's the number) cable modem. I have tried moving the plug in point for the Cable modem to a different circuit, thinking that maybe I was getting a power fluctuation. Nope, still happens. The one thing that seems to affect the behavior is the distance between the TV and the modem. > 3 ft, it keeps working, < 3 ft, turning the TV on always takes out the modem. The cable coming out of the wall is split behind the TV, with the TV cable going through a signal booster (a few years ago we were having problems). With 20-20 hindsight, I think my 5 year old cable modem had the same problem two months ago, but I replaced it thinking that it was just its time. This new one has been working fine for 2 months, and suddenly started doing this. We've got Comcast coming out on Saturday morning, but somehow I think they are going to just try and blame it on the modem, and nothing will get solved in the end. I'll take any suggestions.
16 years ago