Microsoft KB Archive/944351

= AD replication is not working with event 1865 logged =

Article ID: 944351

Article Last Modified on 10/29/2007

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APPLIES TO


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

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Source: Microsoft Support



RAPID PUBLISHING
RAPID PUBLISHING ARTICLES PROVIDE INFORMATION DIRECTLY FROM WITHIN THE MICROSOFT SUPPORT ORGANIZATION. THE INFORMATION CONTAINED HEREIN IS CREATED IN RESPONSE TO EMERGING OR UNIQUE TOPICS, OR IS INTENDED SUPPLEMENT OTHER KNOWLEDGE BASE INFORMATION.



Action


Result
You have multiple sites in the forest. On some sites, you find that AD replication is not working.

On the Inter-Site Topology Generator (ISTG) Domain Controllers, the following events are logged every 15 minutes.

Event Type: Warning

Event Source: NTDS KCC

Event Category: Knowledge Consistency Checker

Event ID: 1865

Date:

Time:

User: NT AUTHORITY\ANONYMOUS LOGON

Computer:

Description:

The Knowledge Consistency Checker (KCC) was unable to form a complete spanning tree network topology. As a result, the following list of sites cannot be reached from the local site.

Sites:

CN= ,CN=Sites,CN=Configuration,DC= ,DC=com

Event Type: Error

Event Source: NTDS KCC

Event Category: Knowledge Consistency Checker

Event ID: 1311

Date:

Time:

User: NT AUTHORITY\ANONYMOUS LOGON

Computer:

Description:

The Knowledge Consistency Checker (KCC) has detected problems with the following directory partition.

Directory partition:

CN=Configuration,DC= ,DC=com



Cause
This may happen when there are connectivity issues between the ISTG servers. For example, if a firewall has blocked the ports, the issue would occur.



Resolution
Use the portqry tool to troubleshoot the connectivity issues to the Bridgehead servers of the sites that are listed in Event 1865. If the ports are blocked by the firewall, configure the firewall to open the ports.



MoreInformation
For more information, please refer to the following Knowledge Base articles:

179442 How to configure a firewall for domains and trusts

http://support.microsoft.com/default.aspx?scid=kb;EN-US;179442

816103 HOW TO: Use Portqry to Troubleshoot Active Directory Connectivity Issues

http://support.microsoft.com/default.aspx?scid=kb;EN-US;816103



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Keywords: kbnomt kbrapidpub KB944351

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