Microsoft KB Archive/281485

= Name Collision in Active Directory Causes Replication Errors =

Article ID: 281485

Article Last Modified on 2/28/2007

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server

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This article was previously published under Q281485



SYMPTOMS
The following error message may be displayed when you attempt to replicate changes between replica partners in the Active Directory Sites and Services tool:

The following error occurred during the attempt to synchronize the domain controllers. The naming context is in the process of being removed or is not replicated from the specified server.

You may also find event ID 1226 or 1265 in the System event log.



CAUSE
This message indicates that CrossRef object deletion or re-creation left the computer in a state in which the new naming context name has a name conflict.



Service Pack Information
To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

Hotfix Information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

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

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:   Date       Time    Version        Size      File Name 3/7/2001  01:11p   5.0.2195.3330  155,408   Ntdsutil.exe 3/7/2001  01:11p   5.0.2195.3330  155,408   Ntdsutil.exe

After you install this hotfix, restart the computer in Directory Service Restore mode, start a command (Cmd.exe) prompt, and then type the following lines, pressing ENTER after each line:

c:\ntdsutil

sem d a

go fix

q

You should see text that is similar to the following sample text to indicate a successful recovery:

c:\ntdsutil

c:\ntdsutil: sem d a

semantic checker: go fix

Fixup mode is turned on

Opening DIT database... Done.

Could not update &quot;datatable&quot; table: key already exists.

Could not retrieve &quot;ATTk589826&quot; column in &quot;datatable&quot; table: (warning) column is null.

Done.

Opening database [Current].....Done.

Getting record count...1744 records

Writing summary into log file dsdit.dmp.0

Records scanned: 1700

Processing records..Done.

semantic checker: q



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 3.



MORE INFORMATION
For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:

265173 The Datacenter Program and Windows 2000 Datacenter Server Product

For additional information about how to install multiple hotfixes with only one reboot, click the article number below to view the article in the Microsoft Knowledge Base:

296861 Use QChain.exe to Install Multiple Hotfixes with One Reboot

For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

For additional information about how to restart your computer in Directory Service Restore mode, click the article number below to view the article in the Microsoft Knowledge Base:

202485 Description of Safe Boot Mode in Windows 2000

When the problem that is described in this article occurs, you may see the following entries in the event logs:

Event Type: Warning

Event Source: NTDS KCC

Event Category: Knowledge Consistency Checker

Event ID: 1265

Date: 7/25/2000

Time: 11:06:15 AM

User: N/A

Computer: SRV1

Description:

The attempt to establish a replication link with parameters

Partition: DC=&quot;CHILD

CNF:318498a8-8c57-46e3-b226-3693f7719162&quot;,DC=DOM2,DC=com

Source DSA DN: CN=NTDS

Settings,CN=SRV2,CN=Servers,CN=SITE2,CN=Sites,CN=Configuration,DC=CHILD,DC=DOM1,DC=net

Source DSA Address:

cabc8641-9a94-41d9-bf9a-56f43b67006a._msdcs.child.dom1.net

Inter-site Transport (if any): CN=IP,CN=Inter-Site

Transports,CN=Sites,CN=Configuration,DC=child,DC=dom1,DC=net

failed with the following status:

Logon Failure: The target account name is incorrect.

The record data is the status code. This operation will be retried.

Data:

0000: 74 05 00 00 t...

Event Type: Information

Event Source: NTDS Replication

Event Category: Replication

Event ID: 1226

Date: 06/11/2000

Time: 6:10:32 PM

User: Everyone

Computer:YOURCOMPUTERNAME

Description:

The object

CN=YOURCOMPUTERNAME,CN=Servers,CN=Default-First-Site,CN=Sites,CN=Configuration,DC=YOURDOMAINNAME ,DC=com (with objectGuid 793c9a19-94ee-4713-b154-9a7f7d81b4a0) was created on a remote server. However, this name is already in use here by the object with objectGuid 980563ba-c29c-4638-ad40-3d0574c925b0. The object with objectGuid 980563ba-c29c-4638-ad40-3d0574c925b0 will be renamed to YOURCOMPUTERNAME CNF:980563ba-c29c-4638-ad40-3d0574c925b0, since the other object claimed the name first.

Note that the GUIDs listed in these entries may vary.

You can use Ntdsutil to obtain the following information that shows the conflict in the names. Look for the lines beneath &quot;Found 2 domain(s)&quot;.

Using Ntdsutil while connected to server 1 in the root domain lists:

c:\>ntdsutil

ntdsutil: metadata cleanup

metadata cleanup: connections

server connections: connect to server servername1

Binding to servername1 ...

Connected to servername1 using credentials of locally logged on user

server connections: quit

metadata cleanup: s o t

select operation target: l d

Found 2 domain(s)

0 - DC=firstdomain,DC=com

1 - DC=&quot;seconddomain

CNF:9b9fbae4-7ba8-45b3-bb6c-71b94c37779a&quot;,DC=com

select operation target: select domain 1

No current site

Domain - DC=&quot;seconddomain

CNF:9b9fbae4-7ba8-45b3-bb6c-71b94c37779a&quot;,DC=com

No current server

Using Ntdsutil while connected to server 2 in the peer domain lists:

H:\>ntdsutil

ntdsutil: metadata cleanup

metadata cleanup: connections

server connections: connect to server servername2

Binding to servername2 ...

Connected to servername2 using credentials of locally logged on user

server connections: quit

metadata cleanup: s o t

select operation target: list domains

Found 2 domain(s)

0 - DC=firstdomain,DC=com

1 - DC=seconddomain,DC=com

select operation target: select domain 1

No current site

Domain - DC=seconddomain,DC=comDescription of Safe Boot Mode in Windows 2000

In this example, the root domain shows the incorrect name:

Found 2 domain(s)

0 - DC=firstdomain,DC=com

1 - DC=&quot;seconddomain

CNF:9b9fbae4-7ba8-45b3-bb6c-71b94c37779a&quot;,DC=com

The peer domain shows the correct information:

Found 2 domain(s)

0 - DC=firstdomain,DC=com

1 - DC=seconddomain,DC=com

select operation target: select domain 1

Additional query words: kbDirServices

Keywords: kbhotfixserver kbqfe kbbug kbdirservices kbfix kbwin2000presp3fix kbwin2000sp3fix KB281485

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