How do I reset my password for apple tv

What is your model Apple TV? Identify your Apple TV model - Apple Support

Could it be that you have an Apple TV (2nd or 3rd generation), that fails to take your account credentials in combination with two-factor authentication?

Could it be that you have an Apple TV (2nd or 3rd generation), which says ‘Activation: Failed’ in Settings﹥General﹥About﹥?

are you you referring to the Apple TV app, your Apple ID or what?. I know it’s confusing but we need you to be more clear.