Can no longer login to the xFi app from mobile devices

[Edderd]

I can log in from my computer to https://internet.xfinity.com/ and everything looks good. 

When I try to sign into the mobile xFi app from my iPhone, it redirects me to log in 'xFI Wants to Use "Comcast.net" to Sign in' continue. 

It then goes to login.comcast.net and times out and I get a message that "the server stopped responding". Same thing on the iPad. 

I troubleshot the iPhone and iPad from the web app and shows no issues. 

[RobertWy]

That is your Comcast userid.comcast.net.

https://www.xfinity.com/support/articles/xfinity-xfi-overview

"Download the Xfinity xFi app for free from the Apple App Store or Google Play and sign in as a primary or unrestricted secondary user to access xFi.

To download the xFi mobile app on an iPad, navigate to the App Store search settings in the upper left-hand corner of the App Store. Change the setting from iPad only to iPhone only, then search for Xfinity xFi."