Device identity certificates in the MDM profile expires five years after computers or mobile devices are enrolled in Jamf Pro 10.22.1 or earlier. To ensure computers and mobile devices retain their MDM functionality, you can re-enroll them prior to the expiration date of the device identity certificate.
If five years have passed and the device identity certificate has expired for a computer or mobile device, you can restore MDM communication between Jamf Pro and the computer or mobile device by doing one of the following:
Restore the connection to Jamf Pro
Re-enroll the computer or mobile device