This is a cool feature that excited most of the Apple Fans when Sierra was announced. In order for this setup to work, you will definitely need the following:
What is required for Auto Unlock?
According to Apple, Auto Lock requires a 2013 or later Mac. You’ll also need to have Two-Factor Authentication established for the iCloud account associated with your Mac and Apple Watch. Your Mac will need to be running the macOS Sierra and the Apple Watch has to running watchOS 3.
The Basic Settings.
Your Apple account must have Two-Factor authentication enabled. To do this, go to the Apple ID website, and turn off two-step verification. Then go into System Preferences on your Mac, click iCloud, then Account Details, then Security, and enable Two-Factor authentication.
Once you’ve completed these steps, the setup process is simple. Make sure you have a passcode on your Apple Watch, and then go into your Mac system preferences, click on Security and Privacy, and uncheck the ‘Disable Automatic Login’.
Several users have noted that their unlock functionality does not work despite meeting all the requirements shown above. Users note that the “Unlocking with Apple Watch” message appears briefly but then it requests you to enter your password.
In most of these cases, it is a series of restarts that will solve your issue.
Tip – 1 Turn off Bluetooth on your phone for 30 seconds and then try the auto unlock again. Check to see if that fixed your issue. When you turn on the Bluetooth, it should continue to work without any issues.
Tip – 2 Try restarting your phone, watch, and laptop in that order. Once you have restarted the devices, you will need to initially sign into your laptop manually (after the restart). The Unlock with Watch will start working from that point on.
Tip – 3 If you have an older mac that does not support this feature, you can also try to switch the wi-fi card and it will make it possible to use this feature. You can source a 802.11 card from Amazon easily.
Tip – 4 Try adjusting the distance between the watch and Mac. Sometimes when the battery is low on the Watch, the distance is impacted.
We hope you are able to enjoy this fun and convenient feature on your MacBook.