Replaced Personal Modem with Xfinity, But Xfinity Still Thinks Old Modem is connected
As part of troubleshooting connectivity issues, I replaced a personal Motorolla Modem with a new Xfinity modem. Installation was pretty easy and all services are working fine.
I can't run a speed test or do any other diagnostics because the old modem is still associated with the account; in fact, XFinity reports they can't detect a signal to my house. What do I do? (Besides making ANOTHER trip to the brick and mortar to fix problems with an old account for some MYSTERIOUS reason, Comcast keeps hanging around even though I deactivated it 3 1/2 years ago).