Group Policy, like any other area of administration, has to be managed carefully. When things aren’t working as expected or you suspect there’s a problem, you have to roll up your sleeves and start troubleshooting. The problem is where to begin. Group Policy has many infrastructure dependencies. For things to go exactly right, the infrastructure must be set up appropriately and there must be no failure of essential services such as Domain Name System (DNS), Distributed File System (DFS), or even Active Directory^® itself. Because of this, Group Policy troubleshooting should always begin with an examination of the supporting infrastructure. Once you confirm that the problem isn’t within the underlying infrastructure, you can work to troubleshoot Group Policy.

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