We are experiencing the same problem, just opened a case with Meraki. We determined that it's prompting for our DEP Admin account and password. ... View more

This just started happening to us on existing networks, with existing apps. Selecting an App and choosing Refresh Details and then saving generates the error. Not adjusting tags at all.   ... View more

Getting the same problem here.  Opened a support ticket and they are aware of an Apple Push Notification (APN) problem at Apple.  It started yesterday afternoon for us. ... View more