How to register your gateway You have two options for setting up your modem on the Xfinity network. Activating your service through the Xfinity app The Xfinity app centralizes everything you need ...

Comcast says that “due to technical limitations” the beta app can only be used on secondary televisions. It’s not clear if this will change once the Xfinity app exits beta.

Robust performance, easy setup, and some unique extras make the Google Nest WiFi system the best WiFi extender for Xfinity customers that have old devices that just work on the 2.4Ghz band.