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Your Apple Watch must be signed in to iCloud to allow it to unlock your Mac.

My macbook pro (OS Sierra) stopped using my apple watch to sign in. I've tried reclicking "Allow your apple watch to unlock your Mac" in the Security and Privacy tab of the Systems Preferences; however, I keep getting a dialog box with this notice, "Your Apple Watch must be signed in to iCloud to allow it to unlock your Mac." My apple watch is signed into iCloud with the same iCloud account on my Mac and everything was working fine a few days ago.


Any suggestions?

MacBook Pro (Retina, 13-inch, Late 2013)

Posted on Oct 30, 2016 9:54 AM

Reply
Question marked as Top-ranking reply

Posted on Feb 3, 2017 12:15 AM

Unpairing and repairing the watch did not help.

Here's what i've tried:

  • on Mac open System Preferences > iCould > Account Details > Devices Devices, select Apple Watch and click Remove From Account
  • restart iPhone
  • open Apple Watch app on iPhone
  • open General > Apple ID
  • I saw my Sign In button below my Apple ID
  • then i accidentally went back to General and after going to Apple ID again the Sign In button was not longer there!

Come on, Apple, you've got improve the quality control of software that you release!

57 replies

Nov 6, 2016 9:27 AM in response to Petcook

Ok, after fixing this problem a week ago, my computer has reverted back with the box "Allow Apple Watch to unlock this Mac" unchecked. Once again if I try to check the box I get the same error message "Your Apple Watch must be signed in to iCloud to allow it to unlock your Mac." What's going on? I don't want to do this every week. Is Apple fixing this bug?

Nov 6, 2016 6:34 PM in response to Petcook

I've had this very frustrating issue as well. I had it working briefly on my late 2013 iMac at work, but it didn't stay working for long.


I have powered off/on my iphone 6, Apple watch and iMac multiple times, at the same time, to no avail.


I have unpaired and re-paired the Watch to my phone once, which took approximately 45 minutes, so don't want to do that again.


I have turned off/on the bluetooth and wifi on i phone and imac. No luck.


At this stage I am thinking it is because of the work wifi configuration- I believe that wifi is a necessary component of all this.


Unfortunately I don't have a recent model Mac at home so can't test this outside my work environment.

Nov 8, 2016 4:23 PM in response to Petcook

This is crazy! The apple watch unlocking the mac keeps turning on and off.


October 31 -- can't check the Unlock this Mac box and I get the iCloud error message. Later that day, I logged out and back into iCloud and the system worked and allowed me to check the "Allow Apple Watch to unlock this Mac" box. Everything worked for a week.


November 6 -- Apple Watch stopped unlocking the Mac and once again and the "Allow Apple Watch to unlock this Mac" box was unchecked and the error message prevented me from checking the box again. I decided to let it go and just login with my password.


November 8 -- My computer started unlocking with my watch. The "Allow Apple Watch to unlock this Mac" box is checked once again. (I didn't do anything)


I don't get it. I think this is bad coding that needs to be completely changed. It obviously is not reliable. I completely give up. If it works, then great. If not, then I will just type my password.

Your Apple Watch must be signed in to iCloud to allow it to unlock your Mac.

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