Geeze, I hate this modem. My cable internet is down an I think its this modem. They say to check if your cable internet line is working plug a cable tv into it and check for full color tv and no distortions. I'm getting that and a couple of my friends have no problems with their service (we're on the same ISP, same city). Tech support thinks my modem isn't getting block sync and they want to send someone out this coming Friday
(I'll be calling the local office to see if someone can come out sooner) and check the RF signal and voltage.
So, if this modem is the problem, I HATE IT. I'm using the ethernet connection.