If it’s an older Apple TV and you have 2 factor authentication enabled you need to enter the code after your password (no spaces) and there is a time limit
This thread has been closed by the system or the community team.
You may vote for any posts you find helpful, or search the Community for additional answers.
Apple TV no working
Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.