Getting HomeKit to work again

Ok, Apple, in order to fix this HomeKit nonsense we had to:

  1. Update iPhone
  2. Guess that Apple TV also needed updating because you didn’t tell us
  3. Disable Apple TV public betas to see 11.2.1
  4. try cellular, no go
  5. Enable WiFi and use the Home app
  6. Now cellular works
  7. Ugh