I used the Xfinity app to scan the code and vola, it worked. It recognized the modem and allowed it to install and activate. It works great now, but it was a little struggle getting there. I cancel the return and don’t have to pay $14 a month for it. Read more. 4 people found this helpful.
https://www.amazon.com/WestNet-Comcast-XFINITY-Advanced-Gateway/dp/B08B138ZN9

