DFS-N: The DFS Namespaces sync interval should be set to the default value of 1 hour

Updated: June 30, 2010

Applies To: Windows Server 2008 R2, Windows Server 2012

This topic is intended to address a specific issue identified by a Best Practices Analyzer scan. You should apply the information in this topic only to computers that have had the File Services Best Practices Analyzer run against them and are experiencing the issue addressed by this topic. For more information about best practices and scans, see Best Practices Analyzer.

Operating System

Windows Server 2008 R2


File Services






The sync interval value is different from the default, which is 1 hour (3600 seconds).


The DFS Namespace service may put more load than necessary on Active Directory Domain Services (AD DS), or be unable to recover from temporary failures to update AD DS.


Use the Dfsutil command-line tool to set the sync interval on this namespace server to the default value of 1 hour.

To set the DFS Namespaces sync interval

  1. To open an elevated Command Prompt window, click Start, point to All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.

  2. Type Dfsutil server registry syncinterval set 3600 \\servername, where servername is the name of the namespace server (the local server).