'Unable to login' on Xbox despite correct login credentials
I cannot login on any EA games on my (new) Xbox One using my ea.com account. I've confirmed the username and password are correct. The Xbox interface recognizes the username as correct. If I intentionally supply the wrong password, the system tells me it's the wrong password. If I supply the correct password, I get shown a generic 'unable to login' blurb.
I unshielded the password on the Xbox to be confirm the password was correctly typed.
I started a second, new ea.com account because of this, and it is also unable to login via the Xbox (but logging in via the website is fine). I also tried changing Xbox profiles between myself (an adult) and my son thinking EA was looking at an age restriction set by the console or something.
On an underage account, only certain aspects of the game will be playable. In some cases you can alter the permission settings on the Xbox or PS4 account to allow access to the game.