After you restart the DHCP Server service, some DHCP options disappear on a Windows Server 2003-based DHCP server

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Article ID: 938134 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario. You use a Microsoft Windows Server 2003-based DHCP server to assign TCP/IP configurations to client computers. Then, you restart the DHCP Server service. In this scenario, some DHCP options disappear on the DHCP server.

This problem occurs if the following conditions are true:
  • Some user classes are created on the DHCP server.
  • The user classes are referenced in the Scope Options properties or in the Server Options properties.
  • One or more user classes are removed from the DHCP server.
  • The references are not removed before the user classes are removed.
When this problem occurs, client computers do not have the correct TCP/IP configurations. Therefore, the client computers cannot communicate with other computers on the network.

CAUSE

This problem occurs because the DHCP Server service does not correctly handle orphaned references. In this situation, some valid DHCP options are missing during the DHCP Server service restart.

RESOLUTION

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must have Windows Server 2003 Service Pack 1 (SP1) or Windows Server 2003 Service Pack 2 (SP2) installed on the computer. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
889100 How to obtain the latest service pack for Windows Server 2003

Restart requirement

After you apply this hotfix, you must restart the DHCP Server service.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Windows Server 2003 with Service Pack 1, x86-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Dhcpssvc.dll5.2.3790.2946271,87201-Jun-200707:54x86
Windows Server 2003 with Service Pack 2, x86-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Dhcpssvc.dll5.2.3790.4091270,84801-Jun-200708:09x86
Windows Server 2003 with Service Pack 1, Itanium-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Dhcpssvc.dll5.2.3790.2946735,23231-May-200717:27IA-64SP1Not Applicable
Wdhcpssvc.dll5.2.3790.2946271,87231-May-200717:27x86SP1WOW
Windows Server 2003 with Service Pack 2, Itanium-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Dhcpssvc.dll5.2.3790.4091732,16031-May-200717:34IA-64SP2Not Applicable
Wdhcpssvc.dll5.2.3790.4091270,84831-May-200717:34x86SP2WOW
Windows Server 2003, x64-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Dhcpssvc.dll5.2.3790.2946434,17631-May-200717:27x64SP1Not Applicable
Wdhcpssvc.dll5.2.3790.2946271,87231-May-200717:27x86SP1WOW
Windows Server 2003 with Service Pack 2, x64-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Dhcpssvc.dll5.2.3790.4091432,64031-May-200717:34x64SP2Not Applicable
Wdhcpssvc.dll5.2.3790.4091270,84831-May-200717:34x86SP2WOW

WORKAROUND

To work around this problem, remove all references to the user class from the Scope Options properties and from the Server Options properties before you delete the user class.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information about DHCP user classes, visit the following Microsoft Web site:
http://technet.microsoft.com/en-us/library/bb727003.aspx
For more information about the standard terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Properties

Article ID: 938134 - Last Review: October 8, 2011 - Revision: 2.0
APPLIES TO
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Datacenter x64 Edition
  • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
  • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
Keywords: 
kbautohotfix kbexpertiseinter kbwinserv2003postsp2fix kbbug kbfix kbqfe KB938134

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