Apple TV gen-3 - Can't login to iCloud using valid password

Hey windyron,

This article should help: If you can't connect or sign in to iCloud. You’ll want to read through the article to find a heading that’s closest to the message you see and apply the steps there. Be sure to click on the links provided as they’ll lead you to more information and/or steps.

Take care.

Good afternoon windyron,

It might be helpful for you to speak with an AppleCare technical advisor about this issue. Click the link below, choose the phone number for your region from the list, and call when it is convenient.

Contact Apple for support and service - Apple Support

Take care.