RSoP Session Problem
The Group Policy service maintains a reporting system. This allows client-side extensions to report the policy settings they apply to the user or computer. Tools such as the Group Policy Management Console (GPMC) and GPResult display this reporting information to the user. Usually, Group Policy reporting problems do not prevent Group Policy from applying. However, reporting information may be incomplete if reporting errors occur.
Correct a Group Policy reporting session failure
Group Policy relies on Windows Management Instrumentation (WMI) and the Resultant Set of Policy (RSoP) provider to record policy settings as they are applied to the user or computer. The Group Policy Modeling and Reporting features include in the Group Policy Management Console uses this information to report the applied policy settings.
Possible resolutions include:
Ensure the Windows Management Instrumentation (WMI) service is enabled and configured for automatic startup.
Ensure the path, %Systemroot%\System32\Wbem, is included in the PATH system environment variable.
Use the WMIDiag utility to diagnose the problem further.