Hi Joseph,
Have you confirmed that all the Apple tokens on the customer portal are valid and not expired or revoked?
There are 2 tokens to check here for this enrollment issue :
1. the APNs token - go to Setup > Services > Mobile Device Management : check the APNs expiry date. Is it valid?
2. the DEP token for DEP enrollments - go to Devices > Enrollments > Other Enrollment Options > Apple Device Enrollment (DEP) > Tokens > Tokens. Check expiry and also look for any error displayed in red above the token.
You should also check that the device in question has a DEP profile assigned at the following location Devices > Enrollments > Other Enrollment Options > Apple Device Enrollment (DEP). You'll need the device serial number to locate it on this page.
If all tokens are good and the DEP profile is assigned, try one more hard reset with iTunes, then power off the phone for 10 to 15 minutes. Now try enroll again.
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DAVID O'GRADY
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