Microsoft KB Archive/918530

= DNS dynamic update causes frequent computer restarts on Windows Server 2003 SP1-based domain controllers =

Article ID: 918530

Article Last Modified on 10/11/2007

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APPLIES TO

 Microsoft Windows Server 2003, Datacenter x64 Edition Microsoft Windows Server 2003, Enterprise x64 Edition Microsoft Windows Server 2003, Standard x64 Edition Microsoft Windows Server 2003 SP1, when used with:  Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems

 Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems

 Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)</li></ul>

 Microsoft Windows Server 2003, Enterprise Edition</li></ul>

 Microsoft Windows Server 2003, Standard Edition (32-bit x86)</li></ul> </li></ul>

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<div class="notice_section">

<div class="symptoms_section">

SYMPTOMS
When a Microsoft Windows Server 2003 Service Pack 1 (SP1)-based domain controller tries to dynamically register Domain Name System (DNS) records such as the Host (A) record, PTR record, and SRV record for the domain controller, the local Lsass.exe service randomly crashes. Additionally, because you cannot restart the Lsass.exe service, crashes in the service cause the domain controller to automatically restart. Such restarts may occur intermittently on a running domain controller. Or the restarts may occur every time that the operating system loads. Then, when remote computers try to discover such domain controllers by using DNS or by using network requests, services are either delayed or failed. This behavior occurs because the affected domain controller cannot dynamically register DNS records that are offline when you restart the computer.

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CAUSE
This problem occurs because the DNS Client service or the Dnsapi.dll file uses an invalid pointer when the DNS dynamic update for the domain controller records exceeds the UDP packet threshold.

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Service pack information
To resolve this problem, obtain the latest service pack for Windows Server 2003. 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

Prerequisites
To apply this hotfix, you must have Windows Server 2003 Service Pack 1 (SP1) installed on the computer.

Restart requirement
You do not have to restart the computer after you apply this hotfix.

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, x64-based versions
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STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Windows Server 2003 Service Pack 2.

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MORE INFORMATION
For more information about 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

Technical support for x64-based versions of Microsoft Windows
Your hardware manufacturer provides technical support and assistance for x64-based versions of Windows. Your hardware manufacturer provides support because an x64-based version of Windows was included with your hardware. Your hardware manufacturer might have customized the installation of Windows with unique components. Unique components might include specific device drivers or might include optional settings to maximize the performance of the hardware. Microsoft will provide reasonable-effort assistance if you need technical help with your x64-based version of Windows. However, you might have to contact your manufacturer directly. Your manufacturer is best qualified to support the software that your manufacturer installed on the hardware.

For product information about Microsoft Windows XP Professional x64 Edition, visit the following Microsoft Web site:

http://www.microsoft.com/windowsxp/64bit/default.mspx

For product information about x64-based versions of Microsoft Windows Server 2003, visit the following Microsoft Web site:

http://www.microsoft.com/windowsserver2003/64bit/x64/default.mspx

Keywords: kbbug kbfix kbqfe kbpubtypekc kbwinserv2003sp1fix kbhotfixserver kbwinserv2003sp2fix KB918530

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