Originally Posted by Blackamooka

Depending on where you are, Comcast uses different routers, and different systems. In Washington, the routers they use require the phone line to be plugged directly into the router. I'm now in Colorado where they don't.

The point is, you can still have a working phone line hooked up to the internet and have a weak signal. Anyone that claims that's not true has no idea what they are talking about. I ran cable and installed CAT5 cable and phone lines for 5 years for an ISP, and we ran into issues like this all the time.