I'm trying to diagnose if I have a bad modem or router. Our wireless system has stopped working for a minute or two at a time, thus having to wait for it to come back up. The cable modem does it's typical thing of the send/receive lights going out thus not transmitting. I've unplugged etc. to restart the modem and it helps to an extent. Today I went to TWC and got a new (cisco) cable modem, same thing happens. My wireless router is about five-years old and is a Lynksys RG54 (or something like that) wireless G router that's been flawless. Could this be a router problem? or did I just get another bad modem. Cable is hooked up to the same signal and works fine. Any ideas? I am itching to buy an Apple Airport router anyway.