Xfinity Stream app is not recognizing that it's on my home network
Xfinity Stream app is not recognizing that it's on my Comcast home network. I can't watch live TV on my smart TVs. I used to have one of Comcast's XFi modems, but bought my own modem earlier this month. The modem was plugged into the cable line, but ALL my devices for internet and TV connected wirelessly. Replacing Comcast's modem with a store-bought was easy and everything worked. Until I returned the Comcast modem to a Comcast service shop. Next day, the Stream app on all my smart TVs slowed then stopped loading.
I tried uninstalling/reinstalling Stream app, and it needed activation code. After processing that, I get this message on Stream app: "this device can only access Xfinity stream on your in-home Xfinity Network..."