Sharing HomeKit problem - Apple ID is not registered with iCloud problem

I'm having the same issue... and so are many others. It seems this is related to the security bug found with HomeKit last week. Although there hasn't been a specific response from Apple regarding this specific issue... many have surmised that this is related. Apple has said that remote access for guests using HomeKit is disabled until the fix is released sometime this week. Hopefully that will restore the "unable to find iCloud ID" bug that many of us are also facing...

Stay tuned... it's annoying for sure. My wife cannot access any of our home devices right now.

I was having trouble but it then worked after I turned off iCloud Drive and Home on my iPhone before restarting annd then turning them back on again. Of course the time it took to do that may have also allowed something server side to update. It might be worth a shot!

Hey all

We have got it Working. Finally

People who can be invited and who have the latest level of IOS appear in yellow in your addressbook. I could not invite my son and so upgrade his phone.

Still he did not appear as a “yellow address” so i asked him to create an own home and invite me for it. That worked and now his address was yellow in my adressbook. So then i could invite him right back and it all worked

Hope this help you all too!

Ok need someone else to try this as I just fixed mine. On the guest iPhone and iPad I deleted my Philips hue apps. I then attempted to invite myself from the host iPhone and it worked instantly. Now back up and running. Just about to reinstall the Philips hue app on the first phone and iPad and hopefully I don’t run into any problems

Finally fixed this!!

1) Update all of your devices to 11.2.1 or higher

2) Go check under iMessages and see what your receiving "@icloud" account is. My wife's iTunes account email didn't match her @icloud account, sending an invite to @icloud one fixed the issue.

No more problems!

After updated to 11.2.1, everything is working again

Just did an update for all iPhones, iPads and Apple TV deleted invited persons and invited the persons again. Not sur if it was necessary to deleted the persons first.

Thanks, this solved it for me. In my case I sent the invite to the associated phone number as there wasn't an @icloud email address.

Hi there,

I was also able to fix the problem by entering my girlfriends mobile number instead of email address.

Hope this works you as well.

Good luck!

This may help some of you.

I encountered the same problem as everyone else but was able to get around it by inviting the person from a different device, in my case my iPad.

Hope this helps!

Yes the problem with HomeKit sharing is in iOS 11.2. This week Apple should release another update to fix the “Apple ID not registered” issue.

As for your wife’s iCloud.com issue I am not sure why she can’t login.

By the way the iPad 2 can only update to iOS 9.3.5 therefore it won’t be receiving an sort of HomeKit support.

Not true... of you’ve updated your devices to 11.2.1 and your Apple TV’s it does work. Wife and friend both accepted invites after updates (via Eve app as I still had the invite error via Home app). Both are able to edit and access same as before the issues.

You must not have updated everything or have another issue. Many have reported success with this method. Either Phillips Hue or Eve app

I managed to get it to work however it required a complete wipe of my current homekit setup on both my primary and secondary devices.

It was the only way I could get it to work.

11.2.1 fox didn’t work for me.

I was frustrated by the same issue. I was able to add 3 members to Homekit but could not add the 4th. Advice found in Google, YouTube, and on this site was of no help. I had been sending the invite unsuccessfully from my iPhone. I then try sending it from my IPad, and it worked flawlessly. I’m not sure why, both devices had the latest update. I hope this helps.

Install Eve from Elgato. That app does not need to have any of its devices in order to invite. And it’s actually really good to use if you want to do some advanced features with scheduling and scenes.