Enable the Managed Client Debug Log for OS X

Launch Terminal.app

Type the following commands:

sudo defaults write /Library/Preferences/com.apple.MCXDebug debugOutput -2

sudo defaults write /Library/Preferences/com.apple.MCXDebug collateLogs 1

sudo touch /var/db/MDM_EnableDebug

* Log is written to: /Library/Logs/ManagedClient/ManagedClient.log