Ive got plenty of errors from SMS_MP_Device Manager

Device Management Point has encountered an unexpected error when processing DMPProxy.

Mac was successfully enrolled. Some of the MAC machines are now managed and reporting to the server . some mac are still not manage by sccm. Client Type is None and Client is No in the collection.

Any idea how to troubleshoot the issue? Thanks

Looks like some of Mac machines have client install issues. You need to check why was the client not installed. You could make use of CMDiagnostics program that is included with the Mac OS X client package to collect more info on the errors.

For detailed troubleshooting check this link - https://technet.microsoft.com/en-in/library/jj591553.aspx?f=255&MSPPError=-2147217396#BKMK_Step9