The DNS server entry for a WAN miniport adapter is removed on a computer that is running Windows Server 2008 R2 or Windows 7

Symptoms

Consider the following scenario:

  • A WAN miniport network adapter is created on a computer that is running Windows Server 2008 R2 or Windows 7. For example, this WAN miniport network adapter uses PPPOE, PPP, or PPTP.

  • You add or remove a network adapter on the computer.

In this scenario, the DNS server entry for the WAN miniport network adapter is removed unexpectedly. Therefore, name resolution requests fail for network traffic through the WAN miniport network adapter.

Notes

  • The issue does not occur in Windows Server 2003.

  • The skipassource flag of IP addresses is cleared after you use the GUI to change IP settings of a network adapter in Windows 7 or in Windows Server 2008 R2.  For more information, click the following article number to view the article in the Microsoft Knowledge Base:

    2554859 The "skipassource" flag of IP addresses is cleared after you use the GUI to change IP settings of a network adapter in Windows 7 or in Windows Server 2008 R2  

Cause

This issue occurs because the binding functionality between TCP/IP and the WAN miniport in Windows Server 2008 R2 and in Windows 7 differs from the corresponding functionality in Windows Server 2003. Because of this difference, configuration information for the WAN miniport network adapter is unexpectedly removed when a network adapter is added or removed from the computer.

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 the problem described in this article. 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 website:

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 Windows Server 2008 R2 or Windows 7.

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 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 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 maintaining the state of the updated component. 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

Rasmans.dll

6.1.7600.20749

286,208

07-Jul-2010

05:28

x86

Netiomig.dll

6.1.7600.20749

57,856

07-Jul-2010

05:27

x86

Netiougc.exe

6.1.7600.20749

25,600

07-Jul-2010

05:23

x86

Tcpipcfg.dll

6.1.7600.20749

181,760

07-Jul-2010

05:29

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

Rasmans.dll

6.1.7600.20749

344,576

07-Jul-2010

06:12

x64

Netiomig.dll

6.1.7600.20749

72,192

07-Jul-2010

06:11

x64

Netiougc.exe

6.1.7600.20749

26,624

07-Jul-2010

06:06

x64

Tcpipcfg.dll

6.1.7600.20749

253,440

07-Jul-2010

06:13

x64

Netiomig.dll

6.1.7600.20749

57,856

07-Jul-2010

05:27

x86

Netiougc.exe

6.1.7600.20749

25,600

07-Jul-2010

05:23

x86

Tcpipcfg.dll

6.1.7600.20749

181,760

07-Jul-2010

05:29

x86

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

File name

File version

File size

Date

Time

Platform

Rasmans.dll

6.1.7600.20749

698,368

07-Jul-2010

04:50

IA-64

Netiomig.dll

6.1.7600.20749

158,720

07-Jul-2010

04:49

IA-64

Netiougc.exe

6.1.7600.20749

55,808

07-Jul-2010

04:44

IA-64

Tcpipcfg.dll

6.1.7600.20749

518,656

07-Jul-2010

04:51

IA-64

Netiomig.dll

6.1.7600.20749

57,856

07-Jul-2010

05:27

x86

Netiougc.exe

6.1.7600.20749

25,600

07-Jul-2010

05:23

x86

Tcpipcfg.dll

6.1.7600.20749

181,760

07-Jul-2010

05:29

x86

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 the WAN miniport driver, visit the following Microsoft websites:

General information about the WAN miniport driver

Remove WAN miniports and RAS components

WAN driver bindings and connectionsFor 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

After this hotfix is applied, the Startup type of the DHCP client service will be Automatic. To avoid this, you might have to apply hotfix 2684965. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

2684965 Startup Type property in the DHCP Client service is changed to Automatic in Windows 7 or in Windows Server 2008 R2

Additional file information





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

Package_1_for_kb979346~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not applicable

File size

2,484

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Package_2_for_kb979346~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not applicable

File size

2,489

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Package_3_for_kb979346~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not applicable

File size

1,796

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Package_4_for_kb979346~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not applicable

File size

1,787

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Package_for_kb979346_rtm~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not applicable

File size

2,879

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

X86_a79e1d50530e555c72aa67965fc8c311_31bf3856ad364e35_6.1.7600.20749_none_3d7ddf50c1104597.manifest

File version

Not applicable

File size

701

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

X86_f81275c1ccfe7a99a8505a1a993e2f4a_31bf3856ad364e35_6.1.7600.20749_none_d78ed4a1bc9d6790.manifest

File version

Not applicable

File size

693

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

X86_microsoft-windows-rasmanservice_31bf3856ad364e35_6.1.7600.20749_none_9f4ccfba1af5a5a1.manifest

File version

Not applicable

File size

12,900

Date (UTC)

07-Jul-2010

Time (UTC)

06:02

Platform

Not applicable

File name

X86_microsoft-windows-tcpip_31bf3856ad364e35_6.1.7600.20749_none_6214cf5509a6cd00.manifest

File version

Not applicable

File size

213,532

Date (UTC)

07-Jul-2010

Time (UTC)

05:57

Platform

Not applicable

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

File name

Amd64_0f59f4b0383676fd6faade41654e3087_31bf3856ad364e35_6.1.7600.20749_none_68edf982719a30ba.manifest

File version

Not applicable

File size

697

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Amd64_7cbd33a44227cbbfc141f9c1c233c8cc_31bf3856ad364e35_6.1.7600.20749_none_5bd29ce1cd59f03a.manifest

File version

Not applicable

File size

1,036

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Amd64_dfe68bd4c53c42cfdbb4b834b0002d8e_31bf3856ad364e35_6.1.7600.20749_none_3e2b04da9891279f.manifest

File version

Not applicable

File size

705

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Amd64_microsoft-windows-rasmanservice_31bf3856ad364e35_6.1.7600.20749_none_fb6b6b3dd35316d7.manifest

File version

Not applicable

File size

12,904

Date (UTC)

07-Jul-2010

Time (UTC)

06:53

Platform

Not applicable

File name

Amd64_microsoft-windows-tcpip_31bf3856ad364e35_6.1.7600.20749_none_be336ad8c2043e36.manifest

File version

Not applicable

File size

213,538

Date (UTC)

07-Jul-2010

Time (UTC)

06:47

Platform

Not applicable

File name

Package_1_for_kb979346~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

2,498

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Package_2_for_kb979346~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

1,834

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Package_3_for_kb979346~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

2,261

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Package_4_for_kb979346~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

2,019

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Package_5_for_kb979346~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

1,797

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Package_for_kb979346_rtm~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

3,398

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Wow64_microsoft-windows-tcpip_31bf3856ad364e35_6.1.7600.20749_none_c888152af6650031.manifest

File version

Not applicable

File size

75,232

Date (UTC)

07-Jul-2010

Time (UTC)

05:54

Platform

Not applicable

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

File name

Ia64_0a792c3326d1c63adac963456de90837_31bf3856ad364e35_6.1.7600.20749_none_20f014c0c9c5298a.manifest

File version

Not applicable

File size

1,034

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Ia64_ab524113628f90022c7425d5bf9390d2_31bf3856ad364e35_6.1.7600.20749_none_6bb17b03993ac6d4.manifest

File version

Not applicable

File size

703

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Ia64_microsoft-windows-rasmanservice_31bf3856ad364e35_6.1.7600.20749_none_9f4e73b01af3ae9d.manifest

File version

Not applicable

File size

12,902

Date (UTC)

07-Jul-2010

Time (UTC)

06:56

Platform

Not applicable

File name

Ia64_microsoft-windows-tcpip_31bf3856ad364e35_6.1.7600.20749_none_6216734b09a4d5fc.manifest

File version

Not applicable

File size

213,535

Date (UTC)

07-Jul-2010

Time (UTC)

06:52

Platform

Not applicable

File name

Package_1_for_kb979346~31bf3856ad364e35~ia64~~6.1.1.0.mum

File version

Not applicable

File size

1,829

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Package_2_for_kb979346~31bf3856ad364e35~ia64~~6.1.1.0.mum

File version

Not applicable

File size

2,255

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Package_for_kb979346_rtm~31bf3856ad364e35~ia64~~6.1.1.0.mum

File version

Not applicable

File size

1,958

Date (UTC)

07-Jul-2010

Time (UTC)

08:41

Platform

Not applicable

File name

Wow64_microsoft-windows-tcpip_31bf3856ad364e35_6.1.7600.20749_none_c888152af6650031.manifest

File version

Not applicable

File size

75,232

Date (UTC)

07-Jul-2010

Time (UTC)

05:54

Platform

Not applicable

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