Xfinity Stream Smart TV App - Error TVAPP-01005

I have 2 different smart TVs (LG OLED purchased new in 2022 and Samsung Frame TV purchased new in 2025).  I've successfully downloaded and installed the Xfinity Stream app on both TVs.  However, when signing into the app on either TV app, I receive the same error message "Error:  TVAPP-01005".  Both TVs are connected to WiFi, and I've tried multiple connections to resolve it, including using a wired ethernet connection.  The Xfinity Stream app works fine on my iPhone and iPad.  I've tried updating the TV's software multiple times, uninstalled and reinstalled the app, etc.  Anyone have a similar issue that has been resolved?  One of the TVs is installed in a room that does not have a cable connection so adding additional cable boxes is not possible.