xfinity app stuck in infinite login loop

The xfinity app for iPhone will not do anything other than tell me to change my password. I do and it still asks me to change password. I can log into my account using Edge on my PC but if I want to make a payment it creates a page that says we encountered a problem come back later. Today, I cleared the xfinity web page cache and was able to make a payment. But the xfinity app still doesn't work. I have deleted it and reinstalled it wasting so much of my time trying to get the stupid app to work. It has not worked since October 2025, and the website started giving me problems in March 2026.

My internet works fine. I want the app and my account website to work.

From what I read, this appears to only be resolved by direct messaging with support.