Apple TV A1469 can no longer authenticate to iCloud?

When I try to connect to iCloud, I can put in my username and my password and I get a two factor authentication request on my iPhone to approve the connection of my Apple TV, and my iPhone then gives me a 6 digit code, which I then put back into my Apple TV and then my Apple TV tells me iCloud is not available. So there is something about iCloud authentication that is broken on the Apple TV A1469.

This used to work fine. I’ve watched many Apple TV+ shows on my old Apple TV.

But it has now stopped working.

The TV app on my iPhone works just fine.