We usually enroll our iPads through DEP, but these were purchased through the Apple outlet and Apple said they are not eligible for DEP enrollment because of that. (They're claiming they can't put the order under our customer number for DEP to work) So I have tried enrolling them with the Apple Configurator and with User Initiated Enrollment. In both situations, I get an error saying the MDM Profile is Invalid.
I checked the date and time and trusted the certificate in Settings->About->Certificate Trust Settings. I also followed the instructions here: https://www.jamf.com/jamf-nation/articles/192/mobile-device-enrollment-error-invalid-profile-or-invalid-certificate and restarted tomcat. Nothing I have found has worked. The Configurator says Profile Installation Failed - Invalid Profile [MCInstallationErrorDomain - 0xFA1 (40010].
Does anyone have any ideas?