ACE - Professor
If you’re unable to login to U-verse app
Some things to check. This works reliably for me.
login to the myAT&T app
click More (along the bottom on iOS)
click Manage Profile
scroll down and see if there’s anything showing for linked accounts
I have a primary gmail that I used originally, and somewhere along the way I must have been forced to get an att.net userid as well. This one is what is required for me to access U-verse app.
Also note, while looking into this, I noticed both email accounts listed were showing as unverified which I then corrected.