ModemGuides · The Blog · Tagged: Xfi
Xfi
How to Activate a Modem With Comcast Xfinity (Internet and Phone)A complete guide to activating your own modem on Comcast Xfinity, including online self-activation, phone activation, and how to activate a phone modem for Xfinity Voice service.
Xfinity xFi Gateway Keeps Going Offline? How to Fix It (2026)If your Xfinity xFi Gateway keeps dropping offline, the problem is usually a loose cable, overheating, or a service outage. This guide walks you through the most common...