Enrollment of Android device fails when submitting enrollment code through MDM app.
reviewing logcat output from the android device reveals
V/DownloadManager? MIME Type = application/camdm-enrollment
I/DownloadManager? Download 11785 finished with status 401
The MDM app was unable to authenticate to the enrollment server due to incorrect IIS authentication settings
enabled both "Anonymous Authentication" and "Windows Authentication" in IIS authentication settings for the MDM enrollment server.