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Article ID: 2520155 - Last Review: December 27, 2012 - Revision: 3.0

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Symptoms

Consider the following scenario:
  • You configure two DNS servers in a domain.
  • You create Active Directory-integrated DNS zones, and then you enable dynamic update on both DNS servers.
  • You join a computer that is running one of the following operating systems to the domain:
    • Windows Vista
    • Windows Server 2008
    • Windows 7
    • Windows Server 2008 R2
  • You configure the computer to use one of the DNS servers in the domain.
  • You change the DNS server assignment of the computer to the other DNS server in the domain.
  • You perform one of the following operations on the client computer:
    • You restart the computer.
    • You restart the DNS client service.
    • You run the ipconfig /registerdns command.
In this scenario, the DNS Host record of the computer is deleted from the DNS server. Therefore, name resolution issues occur.

For example, you change the DNS server assignment of an Exchange server. Subsequently, the Host record of the Exchange server is deleted. In this scenario, users cannot connect to the Exchange server.

Cause

This issue occurs because of an issue in the DNS Client service. When the DNS server configuration information is changed on a client, the DNS Client service deletes the DNS host record of the client from the old DNS server and then adds it to the new DNS server. Because the DNS record is present on the new server that is a part of the same domain, the record is not updated. However, the old DNS server replicates the deletion operation to the new DNS server and to other DNS servers. Therefore, the new DNS server deletes the record, and the record is deleted across the domain.

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.

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, submit a request to 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 (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 be running one of the following operating systems:
  • Windows Vista Service Pack 2 (SP2)
  • Windows Server 2008 Service Pack 2 (SP2)
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
For more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:
935791  (http://support.microsoft.com/kb/935791/ ) How to obtain the latest Windows Vista service pack
For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
968849  (http://support.microsoft.com/kb/968849/ ) How to obtain the latest service pack for Windows Server 2008
For more information about how to obtain a Windows 7 or a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932  (http://support.microsoft.com/kb/976932/ ) Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows Vista and Windows Server 2008 file information notes
Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.0.600 2 . 22xxxWindows Vista and Windows Server 2008SP2LDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 and for Windows Vista" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Dnsapi.dll6.0.6002.22618168,44819-Mar-201123:49x86
Dnscacheugc.exe6.0.6002.2261825,08819-Mar-201121:51x86
Dnsrslvr.dll6.0.6002.2261886,52819-Mar-201123:49x86
For all supported x64-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Dnsapi.dll6.0.6002.22618221,69619-Mar-201123:52x64
Dnscacheugc.exe6.0.6002.2261828,67219-Mar-201122:15x64
Dnsrslvr.dll6.0.6002.22618117,76019-Mar-201123:52x64
Dnsapi.dll6.0.6002.22618168,44819-Mar-201123:49x86
Dnscacheugc.exe6.0.6002.2261825,08819-Mar-201121:51x86
For all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Dnsapi.dll6.0.6002.22618430,08020-Mar-201100:06IA-64
Dnscacheugc.exe6.0.6002.2261860,41619-Mar-201122:25IA-64
Dnsrslvr.dll6.0.6002.22618222,20820-Mar-201100:06IA-64
Dnsapi.dll6.0.6002.22618168,44819-Mar-201123:49x86
Dnscacheugc.exe6.0.6002.2261825,08819-Mar-201121:51x86
Windows 7 and Windows Server 2008 R2 file information notes
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.1.760 0 . 20xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1 . 21xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Dnsapi.dll6.1.7600.20930270,33622-Mar-201104:42x86
Dnscacheugc.exe6.1.7600.2093028,67222-Mar-201104:40x86
Dnsrslvr.dll6.1.7600.20930132,60822-Mar-201104:42x86
Dnsapi.dll6.1.7601.21689270,33622-Mar-201104:22x86
Dnscacheugc.exe6.1.7601.2168928,67222-Mar-201104:20x86
Dnsrslvr.dll6.1.7601.21689132,60822-Mar-201104:22x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Dnsapi.dll6.1.7600.20930356,86422-Mar-201105:17x64
Dnscacheugc.exe6.1.7600.2093030,20822-Mar-201105:15x64
Dnsrslvr.dll6.1.7600.20930182,27222-Mar-201105:17x64
Dnsapi.dll6.1.7601.21689357,88822-Mar-201105:10x64
Dnscacheugc.exe6.1.7601.2168930,20822-Mar-201105:08x64
Dnsrslvr.dll6.1.7601.21689183,29622-Mar-201105:10x64
Dnsapi.dll6.1.7600.20930270,33622-Mar-201104:42x86
Dnscacheugc.exe6.1.7600.2093028,67222-Mar-201104:40x86
Dnsapi.dll6.1.7601.21689270,33622-Mar-201104:22x86
Dnscacheugc.exe6.1.7601.2168928,67222-Mar-201104:20x86
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Dnsapi.dll6.1.7600.20930686,08022-Mar-201104:08IA-64
Dnscacheugc.exe6.1.7600.2093062,46422-Mar-201104:06IA-64
Dnsrslvr.dll6.1.7600.20930354,81622-Mar-201104:08IA-64
Dnsapi.dll6.1.7601.21689685,56822-Mar-201104:00IA-64
Dnscacheugc.exe6.1.7601.2168962,46422-Mar-201103:58IA-64
Dnsrslvr.dll6.1.7601.21689354,81622-Mar-201104:00IA-64
Dnsapi.dll6.1.7600.20930270,33622-Mar-201104:42x86
Dnscacheugc.exe6.1.7600.2093028,67222-Mar-201104:40x86
Dnsapi.dll6.1.7601.21689270,33622-Mar-201104:22x86
Dnscacheugc.exe6.1.7601.2168928,67222-Mar-201104:20x86

Workaround

To work around this issue, perform one of the following operations on the client computer:
  • Restart the computer.
  • Restart the DNS Client service.
  • Run the ipconfig /registerdns command.

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 software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684  (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows Vista and for Windows Server 2008

Additional files for all supported x86-based versions of Windows Vista and of Windows Server 2008
Collapse this tableExpand this table
File nameUpdate.mum
File versionNot applicable
File size3,078
Date (UTC)21-Mar-2011
Time (UTC)14:42
PlatformNot applicable
File nameX86_23799bcf965904214c1a3d23e95808df_31bf3856ad364e35_6.0.6002.22618_none_2a4790665c778fe3.manifest
File versionNot applicable
File size698
Date (UTC)21-Mar-2011
Time (UTC)14:42
PlatformNot applicable
File nameX86_microsoft-windows-dns-client_31bf3856ad364e35_6.0.6002.22618_none_e44fcd24989e283a.manifest
File versionNot applicable
File size28,407
Date (UTC)20-Mar-2011
Time (UTC)00:10
PlatformNot applicable
Additional files for all supported x64-based versions of Windows Vista and of Windows Server 2008
Collapse this tableExpand this table
File nameAmd64_66c324813c388ae10c3f0534b0a16ed4_31bf3856ad364e35_6.0.6002.22618_none_5fc7564510961b54.manifest
File versionNot applicable
File size1,046
Date (UTC)21-Mar-2011
Time (UTC)14:42
PlatformNot applicable
File nameAmd64_microsoft-windows-dns-client_31bf3856ad364e35_6.0.6002.22618_none_406e68a850fb9970.manifest
File versionNot applicable
File size28,435
Date (UTC)20-Mar-2011
Time (UTC)00:10
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size3,102
Date (UTC)21-Mar-2011
Time (UTC)14:42
PlatformNot applicable
File nameWow64_microsoft-windows-dns-client_31bf3856ad364e35_6.0.6002.22618_none_4ac312fa855c5b6b.manifest
File versionNot applicable
File size27,482
Date (UTC)19-Mar-2011
Time (UTC)23:59
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameIa64_54ded6b5d83ae6502cf996a7b7f3d3e6_31bf3856ad364e35_6.0.6002.22618_none_ea1d99e7417c558a.manifest
File versionNot applicable
File size1,044
Date (UTC)21-Mar-2011
Time (UTC)14:42
PlatformNot applicable
File nameIa64_microsoft-windows-dns-client_31bf3856ad364e35_6.0.6002.22618_none_e451711a989c3136.manifest
File versionNot applicable
File size28,421
Date (UTC)20-Mar-2011
Time (UTC)00:21
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,255
Date (UTC)21-Mar-2011
Time (UTC)14:42
PlatformNot applicable
File nameWow64_microsoft-windows-dns-client_31bf3856ad364e35_6.0.6002.22618_none_4ac312fa855c5b6b.manifest
File versionNot applicable
File size27,482
Date (UTC)19-Mar-2011
Time (UTC)23:59
PlatformNot applicable

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameUpdate.mum
File versionNot applicable
File size2,773
Date (UTC)22-Mar-2011
Time (UTC)13:33
PlatformNot applicable
File nameX86_7cd442d0dd43195bf3ab86575ae92ded_31bf3856ad364e35_6.1.7601.21689_none_5f1b5bed25c82ac1.manifest
File versionNot applicable
File size698
Date (UTC)22-Mar-2011
Time (UTC)13:33
PlatformNot applicable
File nameX86_8d45ec522aab0d536f0692d7479808c9_31bf3856ad364e35_6.1.7600.20930_none_fd623d31043aa53b.manifest
File versionNot applicable
File size698
Date (UTC)22-Mar-2011
Time (UTC)13:33
PlatformNot applicable
File nameX86_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20930_none_e2738773fca68001.manifest
File versionNot applicable
File size55,896
Date (UTC)22-Mar-2011
Time (UTC)05:12
PlatformNot applicable
File nameX86_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7601.21689_none_e42cd591f9ed5e8a.manifest
File versionNot applicable
File size55,896
Date (UTC)22-Mar-2011
Time (UTC)04:50
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_2431dd2d2129d64a2615546f1106a5b2_31bf3856ad364e35_6.1.7601.21689_none_71925462d15a8708.manifest
File versionNot applicable
File size1,046
Date (UTC)22-Mar-2011
Time (UTC)13:33
PlatformNot applicable
File nameAmd64_5c1c9aed90bd680541d881a4fcbb22e4_31bf3856ad364e35_6.1.7600.20930_none_57820a40f770c9d1.manifest
File versionNot applicable
File size702
Date (UTC)22-Mar-2011
Time (UTC)13:33
PlatformNot applicable
File nameAmd64_b0da2615807c239fb5b58d3123b4c2c4_31bf3856ad364e35_6.1.7600.20930_none_8505240671bcdbef.manifest
File versionNot applicable
File size1,046
Date (UTC)22-Mar-2011
Time (UTC)13:33
PlatformNot applicable
File nameAmd64_e3961816f98f6cf2358f56cb5c92f683_31bf3856ad364e35_6.1.7601.21689_none_493954d2a302d365.manifest
File versionNot applicable
File size702
Date (UTC)22-Mar-2011
Time (UTC)13:33
PlatformNot applicable
File nameAmd64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20930_none_3e9222f7b503f137.manifest
File versionNot applicable
File size55,902
Date (UTC)22-Mar-2011
Time (UTC)06:12
PlatformNot applicable
File nameAmd64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7601.21689_none_404b7115b24acfc0.manifest
File versionNot applicable
File size55,902
Date (UTC)22-Mar-2011
Time (UTC)05:45
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size3,215
Date (UTC)22-Mar-2011
Time (UTC)13:33
PlatformNot applicable
File nameWow64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20930_none_48e6cd49e964b332.manifest
File versionNot applicable
File size51,900
Date (UTC)22-Mar-2011
Time (UTC)05:03
PlatformNot applicable
File nameWow64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7601.21689_none_4aa01b67e6ab91bb.manifest
File versionNot applicable
File size51,900
Date (UTC)22-Mar-2011
Time (UTC)04:44
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_30c06c1a55102cbdeab7209ae773f287_31bf3856ad364e35_6.1.7600.20930_none_8bd5136ecb6d206e.manifest
File versionNot applicable
File size1,044
Date (UTC)22-Mar-2011
Time (UTC)13:33
PlatformNot applicable
File nameIa64_69d23e7a6c708978c81d71f2430e2ec4_31bf3856ad364e35_6.1.7601.21689_none_29a4a06076d1718b.manifest
File versionNot applicable
File size1,044
Date (UTC)22-Mar-2011
Time (UTC)13:33
PlatformNot applicable
File nameIa64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20930_none_e2752b69fca488fd.manifest
File versionNot applicable
File size55,899
Date (UTC)22-Mar-2011
Time (UTC)06:07
PlatformNot applicable
File nameIa64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7601.21689_none_e42e7987f9eb6786.manifest
File versionNot applicable
File size55,899
Date (UTC)22-Mar-2011
Time (UTC)05:40
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,168
Date (UTC)22-Mar-2011
Time (UTC)13:33
PlatformNot applicable
File nameWow64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20930_none_48e6cd49e964b332.manifest
File versionNot applicable
File size51,900
Date (UTC)22-Mar-2011
Time (UTC)05:03
PlatformNot applicable
File nameWow64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7601.21689_none_4aa01b67e6ab91bb.manifest
File versionNot applicable
File size51,900
Date (UTC)22-Mar-2011
Time (UTC)04:44
PlatformNot applicable

Applies to
  • Windows Vista Business
  • Windows Vista Enterprise
  • Windows Vista Ultimate
  • Windows Server 2008 Standard
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Foundation
  • Windows Server 2008 Standard without Hyper-V
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows 7 Professional
  • Windows 7 Enterprise
  • Windows 7 Ultimate
  • Windows Server 2008 R2 Standard
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 for Itanium-Based Systems
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter KB2520155
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