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.

I have a setup where there is a comcast modem and a firewall. The firewall is acting as the DHCP server and handing out ip addresses. The comcast modem is only acting as a modem. The firewall had a ...

I'm buying a new modem for my Comcast Internet Service - now that they're charging $7/month for their old modem (docsis 2). I'm thinking about the MOTOROLA SB6120 modem (DOCSIS 3) for $75. Tech ...

Simply put, mesh WiFi systems provide the best coverage with the easiest setup. The base unit of a mesh WiFi kit simply plugs into an Ethernet port on an Xfinity Gateway (or compatible third-party ...