Once the settings are enabled, Sidecar should work without much trouble. This article explains where the settings are and what to do if your Mac and iPad can’t get Sidecar to work or won’t stay connected.
Sidecar Not Working? Fix Your Sidecar Issues in iPadOS and macOS
Here are the most likely reasons why Sidecar is not working at all on your Mac and iPad:
Try the solutions below to get Sidecar working with your Mac and iPad. Make sure to do it in order, as the solutions start with the easiest and gradually get more complicated.
Make sure you are signed in to the same Apple ID account. Check on your Mac via Apple menu > System Preferences. Confirm your Apple ID via the Settings app on your iPad.
