Microsoft KB Archive/922835

= The DHCP scope settings periodically disappear on a Windows Server 2003-based computer =

Article ID: 922835

Article Last Modified on 10/11/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition
 * Microsoft Windows Server 2003, Standard x64 Edition
 * Microsoft Windows Server 2003, Enterprise x64 Edition
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems

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SYMPTOMS
The Dynamic Host Configuration Protocol (DHCP) Server service is running on a Microsoft Windows Server 2003-based computer. However, the DHCP scope settings periodically disappear.



CAUSE
This problem occurs in a scope when the following conditions are true:
 * The DHCP Management utility (Dhcpmgmt.msc) finds a reservation.
 * This reservation uses an invalid address that is the same as the start of the scope. For example, a scope that handles the 10.1.1.0 subnet mask 255.255.255.0 has a reservation in it for 10.1.1.0.



RESOLUTION
To resolve this problem, apply hotfix 936009. For more information about hotfix 936009, click the following article number to view the article in the Microsoft Knowledge Base:

936009 The &quot;Lease duration for DHCP clients&quot; option is set to 0 and some DHCP scope options disappear on a Windows Server 2003-based DHCP server



WORKAROUND
To work around this problem, remove the problem reservation from the scope.



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

Keywords: kbtshoot kbprb KB922835

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