Troubleshooting Universal Group Caching

by Mitch Tulloch [Published on 27 April 2005 / Last Updated on 27 April 2005]

A tip on how to troubleshoot universal group caching if it doesn't seem to be working properly.

If you experience problems with universal group caching you can enable error logging for this feature by configuring the following registry value:


HKLM\System\CurrentControlSet\Services\NTDS\Diagnostics\20 Group Caching


Set this value to 5 to have full diagnostic information written to the Directory Service event log.

The Author — Mitch Tulloch

Mitch Tulloch is a widely recognized expert on Windows administration, networking, and security. He has been repeatedly awarded Most Valuable Professional (MVP) status by Microsoft for his outstanding contributions in supporting users who deploy and use Microsoft platforms, products and solutions. Mitch has published over two hundred articles on different IT websites and magazines, and he has written or contributed to almost two dozen books and is lead author for the Windows 7 Resource Kit from Microsoft Press. For more information, see .

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