Loopback policy does not apply on Vista machine, if security filtering is customized
Scenario:
If we create a group and assign the users to the group.
Create a loopback policy for users in merge mode and assign the group to security filtering for the loopback policy and give the following permission:
Read and Apply Group Policy.
User side of the policy will not apply.
From the GPSVC logs, we see the following:
Machine Side:
GPSVC(434.4b8) 15:00:19:206 EvalList: Object <cn={630069B4-401B-4DB0-9559-EF4D821D04FE},cn=policies,cn=system,DC=childA,DC=dom147330,DC=local> cannot be accessed
User Side:
GPSVC(434.1c8) 15:05:54:924 EvalList: Object <cn={630069B4-401B-4DB0-9559-EF4D821D04FE},cn=policies,cn=system,DC=childA,DC=dom147330,DC=local> cannot be accessed
For more details look into the below article: