MacBook Pro unlock with Iwatch problem

Hi ghislain_001,

Welcome to Apple Support Communities. I understand that you're having trouble using your Apple Watch to unlock your MacBook Pro. I know what a great feature this is to use; I'd like to help. First, if you haven't already, restart your Mac and Apple Watch, then try the Auto Unlock feature again. If you're still having trouble, I'd recommend trying to set up the feature again:

• On your Mac, go to System Preferences > Security & Privacy
• Select the General tab and de-select "Allow Apple Watch to unlock your Mac" checkbox.
• Restart your Mac and your Apple Watch
• Use these steps to set up Auto Unlock again: How to unlock your Mac with your Apple Watch

How to unlock your Mac with your Apple Watch

If you continue to have trouble using or setting up Auto Unlock, reach out to Apple for further assistance: Contact Apple Support

Best Regards.