Hi@Jackieajg 

Welcome to the Sonos Community!

Please try the following:

1. Navigate to https://internet.xfinity.com/
2. Sign in with your Xfinity xFi account
3. Once logged in, click the Devices or Connect tab, then click on the Paused Sonos device
4. On the following page, click on the Unpaused Device button
5. Click on Apply Changes to complete the unblocking process of the device
6. Repeat for each Paused Sonos device
7. Once completed, the Sonos Player(s) will be able to connect, register, update, or stream. You may need to reboot the affected Sonos component(s)

I hope this helps.

I have Xfinity with the latest Gateway and Sonos works just fine.  What seems to be the problem on your end?