Automations Homekit not working after update to 15.4

• This issue may be resolved by installing ios 15.5 which is now available. According to the release notes from Apple: "Fixes an issue where home automations, triggered by people arriving or leaving, may fail."

Found that on Reddit and it solved my problem!

“I had this since iOS 15 and finally fixed it. Do you have a TV as your connected hub? Try this: assuming you are the home owner and your wife is a resident, go on your wife’s phone > settings > her name > scroll down to look at devices her Apple ID is signed into. Is the connected TV hub listed? If not, go on your TV, sign her out, and sign back in. Do it when she is present and use her phone to authenticate TV login when prompted. Then, check her device list again on her phone. The TV should be listed and this should fix it“

I FIXED IT!!!!!!! If you’re using multiple Apple TV’s as your home hub you have to go into one of them and disable the home hub temporarily so your iOS device has a chance to connect to one of them! Once you look in the HomeKit app and one of the hubs goes from standby to connected you should be set!!!!! You’re welcome let me know if it works!

Thanks for the tips. As it turned out I had an old Apple TV. We changed to the new Apple TV 4K few months back. I have not yet wiped the old TV. After reset the old Apple TV (which I intended to give my parents), it finally works! Hope this last!

So my issue was so far fixed when I when to the settings and looked at my home sharing. On one of my apple tvs it was a different user id so I logged out and logged back in to my same apple id as my primary home iphone that has the same icoud email on both iphone & apple tvs and it works! All apple tvs in the house need to be signed in to the same apple id as the main iphone account your using for setup. Hope this helps. (After I signed in had to restart my apple tv & turned wifi on off on my phone and it worked)

iOS 15.5 was just released:

iOS 15.5 includes the following improvements and bug fixes:

- Wallet now enables Apple Cash customers to send and request money from their Apple Cash card

- Apple Podcasts includes a new setting to limit episodes stored on your iPhone and automatically delete older ones

- Fixes an issue where home automations, triggered by people arriving or leaving, may fail

Let's see if it's really fixed... hopefully!

I assume that Homekit detects when you have left Home by the location of your iPhone (similar to the Find My app). So it is possibly a phone-related issue. Have you tried restarting the phone? Sometimes, annoyingly, settings get changed during an iOS update so check that Find My is enabled and that the Home app is enabled for Privacy/Location Services.

I don't currently use the "when I leave the house" trigger but will experiment with it and report back.

HomePods should be on 15.4.1 now. Update to that if you haven’t already done so and make sure tvOS is up to date on Apple TV, iOS on iPhone, iPad as well

iOS and HomePod OS 15.4.1 are now out, so these may fix it.

Since updating my HomePods to 15.5.1, the automations for arriving and leaving are stable again.

For me after upgrading all iPhones and Homepods to 15.5 solved it for now. 15.5.1 doesnt change anything. Still works.

All of my problems like this were resolved by restarting my HomePod. It was counter intuitive because the HomePod was one of the few devices not reporting “no response” in the Home App. Hope it helps.

iOS 15.5 fixed it for me.

Everything ok after 15.5.

my HomeKit at Apple Watch 8.6 came back too