Cannot activate xfinity now modem In xfinity app

I have an active internet connection through my Xfinity modem

I can log into the modem's admin interface directly at 10.0.0.1

The Xfinity app will not let me complete activation/setup, so I can't access account settings, WiFi management, or other features through the app

Modem is online and passing traffic — this is not a "no internet" issue, it's specifically an app activation failure