For the last week or so I am getting error when trying to install the management profile through AC2. This has worked for the last 2 years without an issue for me.
Receiving error: Profile Installation Failed: A Connection to the server could not be established. (MCInstallationErrorDomain - 0xFA1 (4001).
I have also received an error about the enrollment certificate being invalid.
These are older iPads (iPad 4th Generation) still on iOS 10.3.3 - working on replacing them and having the new ones on DEP but these are all I have for the meantime.
I have the same problem with an Apple TV 4K, before it was working perfectly, I recently erase content due to Beta TvOS and now I am not able to enrol it again using Apple Configurator 2 !!
Try re-adding in your MDM connection in configurator and see if this fixes the issue.
@Tom-B I ran into something similar recently. After pushing the profile to the iPads and tapping Apply profile i would get an Invalid Profile error.
I had to disable AD authentication to complete an enrollment via AC2. After the enrollment was completed, I then re-enabled AD authentication.
Hmm... interesting. Unfortunately we don't utilize any AD features in our setup, just reset the iPads every few months and re-enrol via using the downloaded Meraki profile in AC2.