Possible problems are:
1. HSLockdown has SYSTEM in denied list.
– run : HSlockdown <ManagementGroupName> /R “NT AUTHORITY\SYSTEM”
2. Operations Manager Event log shows Error
Source: Health Service Script
Event ID: 10
Message: AD MP DC Local Discovery : Active Directory Helper Objects Installation unsuccessful. MSI was not found at the specified location
– Uninstall Active Directory Management Pack Helper Object
– copy OOMADs.msi nad MOMAspNet.MSI from SCOM Source to “C:\Program Files\System Center Operations Manager 2007\HelperObjects”
– Run OOMADs.msi
– Restart HealthService