Authentication Error - Cant use!

My kids love this app! We use it every night to watch a show before bed while drinking milk.

Now my toddlers are devastated that we cant use it anymore.

It was working fine when we had Cox in AZ. We moved to CA and have Comcast Xfinity. We signed out of Cox, signed into Comcast.

It signs in automatically when connected to our wifi. Says Congratulations with the Disney splash screen and fire works like all is good. Then immediately after we are greeted with "Authorization Error. Error 400-1: Authorization failed. If you are receiving this in error, please log out from your provider and try again."

After pressing OK, the key is there and we arent even logged in. So I cant log out and re login in. I can only try the original login process and enter this endless loop.

Things Ive tried so far.
-Calling cable company to ensure I have subscription (which I do plus we have no issue getting Disney Jr on our TV).
-Turning wifi off and signing in to provider manually using Comcast credentials
-Deleting app and reinstalling
-Tried to sign in on 4 different Apple devices (2 iPhones and 2 iPads)
-Use Jailbroken iPad and run iCleaner to clear cache
-Google search error code and tried all possible suggested solutions

This was a fantastic tool for adverting meltdowns. Now I cant use it.

Calling Comcast, they said everything is correct in their end and its a Disney Jr. problem.

I hope Disney developer reads this. Please fix!

ImpetuousRacer about Disney Junior - TV & Games, v5.7.1