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=supportNote 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 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 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 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.

    Version

    Product

    SR_Level

    Service branch

    6.0.600
    2.
    22xxx

    Windows Vista and Windows Server 2008

    SP2

    LDR

  • 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

File name

File version

File size

Date

Time

Platform

Dnsapi.dll

6.0.6002.22618

168,448

19-Mar-2011

23:49

x86

Dnscacheugc.exe

6.0.6002.22618

25,088

19-Mar-2011

21:51

x86

Dnsrslvr.dll

6.0.6002.22618

86,528

19-Mar-2011

23:49

x86

For all supported x64-based versions of Windows Server 2008 and of Windows Vista

File name

File version

File size

Date

Time

Platform

Dnsapi.dll

6.0.6002.22618

221,696

19-Mar-2011

23:52

x64

Dnscacheugc.exe

6.0.6002.22618

28,672

19-Mar-2011

22:15

x64

Dnsrslvr.dll

6.0.6002.22618

117,760

19-Mar-2011

23:52

x64

Dnsapi.dll

6.0.6002.22618

168,448

19-Mar-2011

23:49

x86

Dnscacheugc.exe

6.0.6002.22618

25,088

19-Mar-2011

21:51

x86

For all supported IA-64-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Dnsapi.dll

6.0.6002.22618

430,080

20-Mar-2011

00:06

IA-64

Dnscacheugc.exe

6.0.6002.22618

60,416

19-Mar-2011

22:25

IA-64

Dnsrslvr.dll

6.0.6002.22618

222,208

20-Mar-2011

00:06

IA-64

Dnsapi.dll

6.0.6002.22618

168,448

19-Mar-2011

23:49

x86

Dnscacheugc.exe

6.0.6002.22618

25,088

19-Mar-2011

21:51

x86

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.

    Version

    Product

    SR_Level

    Service branch

    6.1.760
    0.
    20xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    LDR

    6.1.760
    1.
    21xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    LDR

  • 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

File name

File version

File size

Date

Time

Platform

Dnsapi.dll

6.1.7600.20930

270,336

22-Mar-2011

04:42

x86

Dnscacheugc.exe

6.1.7600.20930

28,672

22-Mar-2011

04:40

x86

Dnsrslvr.dll

6.1.7600.20930

132,608

22-Mar-2011

04:42

x86

Dnsapi.dll

6.1.7601.21689

270,336

22-Mar-2011

04:22

x86

Dnscacheugc.exe

6.1.7601.21689

28,672

22-Mar-2011

04:20

x86

Dnsrslvr.dll

6.1.7601.21689

132,608

22-Mar-2011

04:22

x86

For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Dnsapi.dll

6.1.7600.20930

356,864

22-Mar-2011

05:17

x64

Dnscacheugc.exe

6.1.7600.20930

30,208

22-Mar-2011

05:15

x64

Dnsrslvr.dll

6.1.7600.20930

182,272

22-Mar-2011

05:17

x64

Dnsapi.dll

6.1.7601.21689

357,888

22-Mar-2011

05:10

x64

Dnscacheugc.exe

6.1.7601.21689

30,208

22-Mar-2011

05:08

x64

Dnsrslvr.dll

6.1.7601.21689

183,296

22-Mar-2011

05:10

x64

Dnsapi.dll

6.1.7600.20930

270,336

22-Mar-2011

04:42

x86

Dnscacheugc.exe

6.1.7600.20930

28,672

22-Mar-2011

04:40

x86

Dnsapi.dll

6.1.7601.21689

270,336

22-Mar-2011

04:22

x86

Dnscacheugc.exe

6.1.7601.21689

28,672

22-Mar-2011

04:20

x86

For all supported IA-64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Dnsapi.dll

6.1.7600.20930

686,080

22-Mar-2011

04:08

IA-64

Dnscacheugc.exe

6.1.7600.20930

62,464

22-Mar-2011

04:06

IA-64

Dnsrslvr.dll

6.1.7600.20930

354,816

22-Mar-2011

04:08

IA-64

Dnsapi.dll

6.1.7601.21689

685,568

22-Mar-2011

04:00

IA-64

Dnscacheugc.exe

6.1.7601.21689

62,464

22-Mar-2011

03:58

IA-64

Dnsrslvr.dll

6.1.7601.21689

354,816

22-Mar-2011

04:00

IA-64

Dnsapi.dll

6.1.7600.20930

270,336

22-Mar-2011

04:42

x86

Dnscacheugc.exe

6.1.7600.20930

28,672

22-Mar-2011

04:40

x86

Dnsapi.dll

6.1.7601.21689

270,336

22-Mar-2011

04:22

x86

Dnscacheugc.exe

6.1.7601.21689

28,672

22-Mar-2011

04:20

x86

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 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

File name

Update.mum

File version

Not applicable

File size

3,078

Date (UTC)

21-Mar-2011

Time (UTC)

14:42

Platform

Not applicable

File name

X86_23799bcf965904214c1a3d23e95808df_31bf3856ad364e35_6.0.6002.22618_none_2a4790665c778fe3.manifest

File version

Not applicable

File size

698

Date (UTC)

21-Mar-2011

Time (UTC)

14:42

Platform

Not applicable

File name

X86_microsoft-windows-dns-client_31bf3856ad364e35_6.0.6002.22618_none_e44fcd24989e283a.manifest

File version

Not applicable

File size

28,407

Date (UTC)

20-Mar-2011

Time (UTC)

00:10

Platform

Not applicable

Additional files for all supported x64-based versions of Windows Vista and of Windows Server 2008

File name

Amd64_66c324813c388ae10c3f0534b0a16ed4_31bf3856ad364e35_6.0.6002.22618_none_5fc7564510961b54.manifest

File version

Not applicable

File size

1,046

Date (UTC)

21-Mar-2011

Time (UTC)

14:42

Platform

Not applicable

File name

Amd64_microsoft-windows-dns-client_31bf3856ad364e35_6.0.6002.22618_none_406e68a850fb9970.manifest

File version

Not applicable

File size

28,435

Date (UTC)

20-Mar-2011

Time (UTC)

00:10

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

3,102

Date (UTC)

21-Mar-2011

Time (UTC)

14:42

Platform

Not applicable

File name

Wow64_microsoft-windows-dns-client_31bf3856ad364e35_6.0.6002.22618_none_4ac312fa855c5b6b.manifest

File version

Not applicable

File size

27,482

Date (UTC)

19-Mar-2011

Time (UTC)

23:59

Platform

Not applicable

Additional files for all supported IA-64-based versions of Windows Server 2008

File name

Ia64_54ded6b5d83ae6502cf996a7b7f3d3e6_31bf3856ad364e35_6.0.6002.22618_none_ea1d99e7417c558a.manifest

File version

Not applicable

File size

1,044

Date (UTC)

21-Mar-2011

Time (UTC)

14:42

Platform

Not applicable

File name

Ia64_microsoft-windows-dns-client_31bf3856ad364e35_6.0.6002.22618_none_e451711a989c3136.manifest

File version

Not applicable

File size

28,421

Date (UTC)

20-Mar-2011

Time (UTC)

00:21

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,255

Date (UTC)

21-Mar-2011

Time (UTC)

14:42

Platform

Not applicable

File name

Wow64_microsoft-windows-dns-client_31bf3856ad364e35_6.0.6002.22618_none_4ac312fa855c5b6b.manifest

File version

Not applicable

File size

27,482

Date (UTC)

19-Mar-2011

Time (UTC)

23:59

Platform

Not applicable

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

Additional files for all supported x86-based versions of Windows 7

File name

Update.mum

File version

Not applicable

File size

2,773

Date (UTC)

22-Mar-2011

Time (UTC)

13:33

Platform

Not applicable

File name

X86_7cd442d0dd43195bf3ab86575ae92ded_31bf3856ad364e35_6.1.7601.21689_none_5f1b5bed25c82ac1.manifest

File version

Not applicable

File size

698

Date (UTC)

22-Mar-2011

Time (UTC)

13:33

Platform

Not applicable

File name

X86_8d45ec522aab0d536f0692d7479808c9_31bf3856ad364e35_6.1.7600.20930_none_fd623d31043aa53b.manifest

File version

Not applicable

File size

698

Date (UTC)

22-Mar-2011

Time (UTC)

13:33

Platform

Not applicable

File name

X86_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20930_none_e2738773fca68001.manifest

File version

Not applicable

File size

55,896

Date (UTC)

22-Mar-2011

Time (UTC)

05:12

Platform

Not applicable

File name

X86_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7601.21689_none_e42cd591f9ed5e8a.manifest

File version

Not applicable

File size

55,896

Date (UTC)

22-Mar-2011

Time (UTC)

04:50

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

Amd64_2431dd2d2129d64a2615546f1106a5b2_31bf3856ad364e35_6.1.7601.21689_none_71925462d15a8708.manifest

File version

Not applicable

File size

1,046

Date (UTC)

22-Mar-2011

Time (UTC)

13:33

Platform

Not applicable

File name

Amd64_5c1c9aed90bd680541d881a4fcbb22e4_31bf3856ad364e35_6.1.7600.20930_none_57820a40f770c9d1.manifest

File version

Not applicable

File size

702

Date (UTC)

22-Mar-2011

Time (UTC)

13:33

Platform

Not applicable

File name

Amd64_b0da2615807c239fb5b58d3123b4c2c4_31bf3856ad364e35_6.1.7600.20930_none_8505240671bcdbef.manifest

File version

Not applicable

File size

1,046

Date (UTC)

22-Mar-2011

Time (UTC)

13:33

Platform

Not applicable

File name

Amd64_e3961816f98f6cf2358f56cb5c92f683_31bf3856ad364e35_6.1.7601.21689_none_493954d2a302d365.manifest

File version

Not applicable

File size

702

Date (UTC)

22-Mar-2011

Time (UTC)

13:33

Platform

Not applicable

File name

Amd64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20930_none_3e9222f7b503f137.manifest

File version

Not applicable

File size

55,902

Date (UTC)

22-Mar-2011

Time (UTC)

06:12

Platform

Not applicable

File name

Amd64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7601.21689_none_404b7115b24acfc0.manifest

File version

Not applicable

File size

55,902

Date (UTC)

22-Mar-2011

Time (UTC)

05:45

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

3,215

Date (UTC)

22-Mar-2011

Time (UTC)

13:33

Platform

Not applicable

File name

Wow64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20930_none_48e6cd49e964b332.manifest

File version

Not applicable

File size

51,900

Date (UTC)

22-Mar-2011

Time (UTC)

05:03

Platform

Not applicable

File name

Wow64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7601.21689_none_4aa01b67e6ab91bb.manifest

File version

Not applicable

File size

51,900

Date (UTC)

22-Mar-2011

Time (UTC)

04:44

Platform

Not applicable

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

File name

Ia64_30c06c1a55102cbdeab7209ae773f287_31bf3856ad364e35_6.1.7600.20930_none_8bd5136ecb6d206e.manifest

File version

Not applicable

File size

1,044

Date (UTC)

22-Mar-2011

Time (UTC)

13:33

Platform

Not applicable

File name

Ia64_69d23e7a6c708978c81d71f2430e2ec4_31bf3856ad364e35_6.1.7601.21689_none_29a4a06076d1718b.manifest

File version

Not applicable

File size

1,044

Date (UTC)

22-Mar-2011

Time (UTC)

13:33

Platform

Not applicable

File name

Ia64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20930_none_e2752b69fca488fd.manifest

File version

Not applicable

File size

55,899

Date (UTC)

22-Mar-2011

Time (UTC)

06:07

Platform

Not applicable

File name

Ia64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7601.21689_none_e42e7987f9eb6786.manifest

File version

Not applicable

File size

55,899

Date (UTC)

22-Mar-2011

Time (UTC)

05:40

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,168

Date (UTC)

22-Mar-2011

Time (UTC)

13:33

Platform

Not applicable

File name

Wow64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20930_none_48e6cd49e964b332.manifest

File version

Not applicable

File size

51,900

Date (UTC)

22-Mar-2011

Time (UTC)

05:03

Platform

Not applicable

File name

Wow64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7601.21689_none_4aa01b67e6ab91bb.manifest

File version

Not applicable

File size

51,900

Date (UTC)

22-Mar-2011

Time (UTC)

04:44

Platform

Not applicable

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