I have 1 iPad that is enrolled in DEP and when it starts up it goes through the process to enroll in Casper but stops with an error: SCEP Server Returned an Invalid Response. Did some searching and it seems like it happens to other MDMs as well but Im not sure how to correct it.
I did come across this but it was on a Symantec forum: Increase the maximum query request size on the server
All other iPads seem fine.
Thanks
Mark