Can’t log into Apple Tv

JohannaSB Said:

"then gives me this website"

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Which Web site? The discussions forums?

A. As for the Apple TV:

1. Power Off: Apple TV
2. Wait: for 30 Seconds
3. Power On: Apple TV

B. Also, reset your router.

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

What happens exactly when you try to sign in? Do you get an error message? What does it say?

Please see: https://discussions.apple.com/thread/250420575