Apple TV not recognizing Verification Code - Verification Code times out!
I found that the directions needed revamped as Verification Code times out causing you to attempt multiple times... see how I used existing instructions but in a different order for success!
"If you are using two-factor authentication on an older device… You should be able to append the code to your password and enter that (i.e. if your password is ABC and your code is 123, enter ABC123), however if this doesn't work it may be that you are running out of time using your authentication code and you may want to delay getting your code until the last minute or temporarily disable the 2 step verification/2 factor authentication, although it shouldn’t be necessary."
Get a verification code and sign in with two-factor authentication
The following was posted by two other users, but needed revamped a bit due to Verification Code times out on your iPhone or iPad. After trying 2 times, I figured out the best steps are below for success! You'll need to multitask with iPhone/iPad and your AppleTV.
1. From your iPhone or iPad: go to "Settings", click on the top bar with your name and "Apple
ID, iCloud, iTunes & App Store".
2. On your AppleTV: go to the iTunes login "Settings" and start logging in.
3. On your AppleTV: when it asks for your password, enter your password BUT DO NOT HIT SUBMIT, YET!!
4. On your iPhone or iPad: tap on "Password & Security", then tap on "Get Verification Code", LEAVE the supplied verification code visible.
5. On your AppleTV: go back to iTunes login add the Verification Code to the end of your password BUT DO NOT HIT SUBMIT, YET!!
6. On your iPhone/iPad: tap on "OK" on the verification code to make it go away.
7. On your AppleTV: now submit the password.
iPhone XS Max, iOS 14