Unable to unlock my MacBook Pro using Apple Watch

I tried all the simple steps. I finally unpaired my Apple Watch Ultra 2 and paired it again, and my Mac will finally unlock. I'm still having an issue with my Watch unlocking my iPhone. Watch always unlocked via the iPhone.

Suddenly about 48 hours later, I received an alert on my Mac that I could use my watch to unlock. Clicked it, turned on unlock, and it worked! I think it has something to do with my new AppleID - took a while to finally sync across all devices. It shouldn't take that long.

I had the same problem. Updating MBP M2 to Sequoia 15.0.1 and new AW 10 with AWos 11.0.1. The 'Unlock with AW..' was turned on, but it didn't work. Turned it off and triad to turn on, not possible. It stayed in 'syncing' for 'ever' but not turning on. Then I did with tip on this thread: Changed the name on the new AW in AW App on iPhone, Unpaired the other (old) Apple Watch's in AW App on iPhone. Restarted the new AW, and voila..

The syncing for Unlock with AW turned on, and it works. Haven't tried 'over night sleep' yet. But waited until all disks slowed down and so on.. and it works.

I have a 2018 Mac Mini and it has never been able to use my Apple Watch (Ultra 2 at this moment in time) to reliably Unlock my Mac. What I do know is that is a collection of strategies work for some and don't work for others regardiing this issue. So for those of you who are still looking for a resolution to this problem, I created a video of what FINALLY worked for me about a month ago and continues to work EVERY SINGLE TIME. It's a incredibly hidden setting. If you watch the video, you'll understand why it took me so long to discover it. https://youtu.be/1rkKNyg-d4U?si=8G-hFiRfsoIQg0M2

Hello all, here is a recent post with an interesting solution.

😎

These steps did not work for me. Looks like I will have to contact support (or may just wait for the first patches to see if this is fixed).

Exactly as I predicted: A few days later, and my watch now unlocks my MBP. I did nothing more than the steps originally recommended. This seems to be the case each major OS upgrade.

This helped me, without doing "3. Shut down Mac".

Thanks, this fixed it for me too.

Thank you. Worked for me.

No joy. I even went a step further and reset my Apple Watch 8, then reinstalled it from a backup on my iPhone.

This worked for me without having to shut down both devices. Thx.

I had same issue with Sequoia 15.1.1 and had to completely power off my Apple Watch Ultra 2 and MacBook Air, then turn them on again to fix the issue. Simply restarting did not work.

This has been a problem since I got my new Series 10 watch. I finally followed your instructions above and it worked! Thank you