FileNotFoundCacheLifetime should have the recommended value

This article is intended to address a specific issue identified by a Best Practices Analyzer scan. You should apply the information in this article to computers on which Best Practices Analyzer scans have been run, and that are experiencing the issue addressed by this article. This article can also be useful as general troubleshooting and best practices information to help you configure your server. For more information about best practices and scans, see Run Best Practices Analyzer Scans and Manage Scan Results.

If you think that something in this article is missing or could use improvement, we encourage you to add or edit content that addresses this specific issue. Instructions for editing a TechNet Wiki article are available at Wiki: How to Use the Editor.

Issue

FileNotFoundCacheLifetime doesn't have the recommended value.

Impact

SMB not in a default configuration, which could lead to less than optimal behavior.

Resolution

Set FileNotFoundCacheLifetime to the recommended value, 5 (located in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters)

See also