Microsoft KB Archive/832628

= DCDiag.exe returns incorrect Intersite Topology Generator (ISTG) information =

Article ID: 832628

Article Last Modified on 7/24/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise x64 Edition

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SYMPTOMS
When you run the DCDiag.exe domain controller diagnostics tool together with the /e and the /v switches, DCDiag.exe returns information that is similar to the following:

Doing intersite inbound replication test on site : Locating & Contacting Intersite Topology Generator (ISTG) ...               *Warning: ISTG time stamp is 10500 minutes old on . Looking for a new ISTG. *Warning: The next ISTG could not be authoritively determined for site . A DC should make an ISTG failover attempt in 46 minutes. * Warning: Current ISTG failed, ISTG role should be taken by  in 46 minutes.

Note The DCDiag.exe tool is included with the Microsoft Windows Server 2003 Support Tools. To install the Windows Support Tools, double-click Suptools.msi in the Support\Tools folder on the Windows Server 2003 CD-ROM.



CAUSE
This issue occurs when your forest is at the Windows Server 2003 forest functional level. The intersite test that DCDiag.exe performs returns an incorrect analysis about the state of the Intersite Topology Generator (ISTG). This issue occurs because Windows Server 2003 uses a different ISTG keep-alive method from the keep-alive method that is used in Microsoft Windows 2000. The location of the keep-alive information has been moved in Windows Server 2003 to reduce replication overhead. Because DCDiag.exe tries to read this information from an incorrect location, an incorrect analysis about ISTG is returned.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
No prerequisites are required to install this hotfix.

Restart requirement
You do not have to restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel. Windows Server 2003 32-bit editions    Date         Time   Version            Size    File name --  02-Dec-2003  02:35  5.2.3790.107      281,600   Dcdiag.exe Windows Server 2003 64-bit editions   Date         Time   Version            Size    File name    Platform -  01-Dec-2003  21:34  5.2.3790.107      581,120  Dcdiag.exe       IA-64



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section of this article.



MORE INFORMATION
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional query words: Authoritatively

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe kbwinserv2003presp1fix KB832628

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