Hi all,
I created this Xfinity device scanner when I was living in a Comcast house. It worked for me but I didn’t get a chance to submit a PR to homeassistant. As I no longer have Xfinity, I just wanted to share what I had and maybe let someone else (who can test) use/update the code and possibly submit a PR. It worked for me for the Xfinity xFi Gateway.