Schema Modification Results in Schema Mismatch Event 1203 Message

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This article was previously published under Q300642

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SYMPTOMS

After you install a program that modifies the Windows 2000 Active Directory schema or manually modify the schema, you may experience an increase in replication network traffic. The following informational event may also be logged in the Directory Services event log:

Event Type: Information Event
Source: NTDS Replication Event Category:Replication
Event ID:1203
Date:4/6/2001
Time:9:33:50 AM
User:ComputerUser
Computer:MyComputer
Description: A schema mismatch encountered while replicating object CN=domain,CN=,CN=domain,CN=domain,DC=MYDC,DC=MYDC from server ,GUID._msdcs._domain.com. A schema sync has been queued and sync on DC CN=Configuration,DC=MYDC,DC=com will be retried after the schema sync.

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CAUSE

This problem can occur if schema inconsistency failures occur during synchronization until the schema cache is reloaded.

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RESOLUTION

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

260910 (http://support.microsoft.com/kb/260910/EN-US/ ) How to Obtain the Latest Windows 2000 Service Pack

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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.

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