If it seems that macOS provisioned device(s) are stuck on their Remote Management Screens like the one below after reboot and or imaging; please note that you will have to re-image to wipe this “baked-in” setting that peers to your assigned Mobile Device Management (MDM) system.
*** Upon close inspection; this screen represents an iOS enrollment which is not the macOS at issue in this article.
Resetting the PRAM will aid in networking (caching) in some cases; more than likely the device will – should be reimaged
