Xfinity will let you rent a modem when you sign up for its Internet service, but you do have the option of using a third-party modem instead. Here's how.

Just recently ive been having lots of trouble with my Comcast internet connection. I've had a modem that I rented from them, it's an RCA DCM305, and I've always been quiet sceptical about this modem, ...

So, possible a dumb question. I am on Comcast cable. For several months, download speeds have been abysmal. I have a roughly 8 year old Linksys cable modem. Do I blame obsolete / failing hardware or ...