Article ID: 262188 - View products that this article applies to.
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You may notice that Dynamic DNS updates to a Windows 2000 DNS server silently fail to update an existing host record. This problem can occur in an Active Directory integrated DNS environment in which scavenging is enabled for the DNS zone in question.
This behavior occurs when you switch a secure DNS zone to a non-secure zone, and then back to a secure zone. This action can assign incorrect security context to certain records. The incorrect security setting prevents the record from being updated in the way it normally is when you use dynamic update.
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:
(https://support.microsoft.com/kb/260910/EN-US/ )How to Obtain the Latest Windows 2000 Service Pack
Microsoft has confirmed that this is a problem in Microsoft Windows 2000.
This problem was first corrected in Windows 2000 Service Pack 1.