Can use Lutron app remotely, but not Home app

[ActionableMango]

I have a Lutron Caseta dimmer and hub.

The Lutron app works perfectly on network (wi-fi) and remotely (LTE). It correctly detects the states of the lights and can control them.

The Apple Home app works perfectly on network (wi-fi) only. When used remotely (LTE), the devices in the app all state "No Response. This accessory is not responding."

Apple instruction says that to get this working over the Internet, I must have an AppleTV4 logged into iCloud with two-factor authentication (I do). They also provide instruction for how to verify this (I have).

I'm not sure what else to do. Any ideas?

 

[gildorn]

Does the "Automation" tab seem to indicate that HomeKit is otherwise working fine remotely? That's the one I use to make sure remote-HomeKit is fine. This can help narrow down if it's more HomeKit-y or Lutron-y of a problem.

I sometimes see "No Response" as a summary of my Lutron lights for a good few minutes before it loads. Do the individual controls say "Updating…" still or you waited long enough that it got to "No Response"? (Other times it works very quickly.)

 

[ActionableMango]

Thanks for the response. I got it working by removing all the devices and re-entering them all again. I hope I don't have to do that periodically. It's been about a week now and still working correctly.