Hulu Not working with Apple TV solved

I had this same problem and could not log in for days. Here's the solution:

Delete Hulu app on your Apple tv.

Go to Apple tv settings, then scroll down to System, then Restart apple tv. (You can also simply unplug and plug back in after 10-15 seconds.)

Download Hulu app again.

Log in.

You should be good to go now. Hope that helps!