Homekit invitation failure

This is a huge issue that needs to be addressed by Apple pronto! Losing faith in HomeKit due to the lack of transparency from Apple on why users are being locked out of controlling home devices with such an alarming message.

SOLVED - thanks Megatron1000 - I got it working by also using my wife's mobile number instead of the registered email address (which was definitely the registered icloud address). Pity such a simple problem is not addressed by Apple. Cheers Clint

I have the same problem (as have many others it seems) and no matter which email address or iPhone number I try, I get the same message that the Apple ID is not registered.

There seem to be lots of problems with iCloud and Apple ID.

My work iPhone 6 was just updated to 11.2.2 and now I get a message in Settings that I need to sign in again but when I click 'Continue' and enter the password nothing happens. The screen returns to the 'Update Apple ID Settings' with the 'Continue' button again.

On my personal iPhone 6, I did a reset & restore from iCloud and now the software update window in Settings says I will be able to update to 11.2.2 when the iCloud restore has finished (but there is nothing left to finish).

Frustrating!

Last night (01.12.18) IOS 11.2.5 beta 5 was released two days after 11.2.5 beta 4 (for iPhone X). Not for iPhone 7 Plus yet.

My wife’s iPhone 7 Plus is running 11.2.5 beta 4 and the Homekit share invitation finally went thorough, and now Home is working perfectly

Now we are ready for HomePod !!!!

Last night (01.12.18) IOS 11.2.5 beta 5 was released two days after 11.2.5 beta 4 (for iPhone X). Not for iPhone 7 Plus yet.

My wife’s iPhone 7 Plus is running 11.2.5 beta 4 and the Homekit share invitation finally went thorough, and now Home is working perfectly

Now we are ready for HomePod !!!!

Just update iPhone and Apple TV 4K to 11.2.5 and it didn't solve the problem. Still getting the message that my wife's email is not registered with iCloud (it's a ******* .mac account).

So frustrating!

I had exactly the same problem and managed to get it to work by manually writing in the phone number of the guest, rather than using any email.

Blast. This didn't work for me. Same message ;_;

This would suggest that it really was a system software bug and not a problem with iCloud or AppleID.

Too soon to be sure but I hope that 11.2.5 update is released sooner rather than later.