Symptoms

Consider the following scenario:

  • You have two computers that are running Windows 7 or Windows Server 2008 R2.

  • Each computer is behind a separate Network Address Translation (NAT) firewall.

  • You connect the computers by using an Internet Protocol Security (IPsec) connection that uses Internet Key Exchange version 2 (IKEv2) tunnel mode.

  • You install the update that is described in Microsoft Knowledge Base (KB) article 2248145 on one of the computers.

In this scenario, the IPsec connection fails. More specifically, no data packets are routed through the IPsec connection, and the IPsec connection is negotiated repeatedly.

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 one of the following operating systems:

  • 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 7 or 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 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, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.1.760
    1.17xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    GDR

    6.1.760
    1.21xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • 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 7 and for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical 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

Bfe.dll

6.1.7601.21939

496,128

09-Mar-2012

13:49

Fwpuclnt.dll

6.1.7601.17514

216,576

20-Nov-2010

12:19

Ikeext.dll

6.1.7601.21939

675,328

09-Mar-2012

13:50

Networksecurity-ppdlic.xrm-ms

Not applicable

3,028

09-Mar-2012

14:11

Nshwfp.dll

6.1.7601.21939

657,920

09-Mar-2012

13:51

Wfp.mof

Not applicable

822

10-Jun-2009

21:32

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

File name

File version

File size

Date

Time

Platform

Bfe.dll

6.1.7601.21939

706,560

09-Mar-2012

15:35

x64

Fwpuclnt.dll

6.1.7601.21939

324,096

09-Mar-2012

15:36

x64

Ikeext.dll

6.1.7601.21939

854,528

09-Mar-2012

15:36

x64

Networksecurity-ppdlic.xrm-ms

Not applicable

3,028

09-Mar-2012

15:52

Not applicable

Nshwfp.dll

6.1.7601.21939

832,000

09-Mar-2012

15:36

x64

Wfp.mof

Not applicable

822

10-Jun-2009

20:51

Not applicable

Fwpuclnt.dll

6.1.7601.21939

216,576

09-Mar-2012

13:50

x86

Nshwfp.dll

6.1.7601.21939

657,920

09-Mar-2012

13:51

x86

Wfp.mof

Not applicable

822

12-Nov-2010

23:57

Not applicable

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

File name

File version

File size

Date

Time

Platform

Bfe.dll

6.1.7601.21939

1,074,176

09-Mar-2012

13:54

IA-64

Fwpuclnt.dll

6.1.7601.21939

566,272

09-Mar-2012

13:55

IA-64

Ikeext.dll

6.1.7601.21939

1,486,848

09-Mar-2012

13:55

IA-64

Networksecurity-ppdlic.xrm-ms

Not applicable

3,028

09-Mar-2012

14:11

Not applicable

Nshwfp.dll

6.1.7601.21939

1,114,112

09-Mar-2012

13:56

IA-64

Wfp.mof

Not applicable

822

10-Jun-2009

20:57

Not applicable

Fwpuclnt.dll

6.1.7601.21939

216,576

09-Mar-2012

13:50

x86

Nshwfp.dll

6.1.7601.21939

657,920

09-Mar-2012

13:51

x86

Wfp.mof

Not applicable

822

12-Nov-2010

23:57

Not applicable

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 7 and for Windows Server 2008 R2

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

File name

X86_20a86d6c24debb129b9d8d613177c98a_31bf3856ad364e35_6.1.7601.21939_none_a2ead1087e612eaa.manifest

File version

Not applicable

File size

704

Date (UTC)

09-Mar-2012

Time (UTC)

20:01

File name

X86_microsoft-windows-network-security_31bf3856ad364e35_6.1.7601.21939_none_cfa4ddeba1f63ee8.manifest

File version

Not applicable

File size

158,847

Date (UTC)

09-Mar-2012

Time (UTC)

20:04

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

File name

Amd64_2666cccee9d44abbc79608dede64f461_31bf3856ad364e35_6.1.7601.21939_none_a6a3ac1846156ab1.manifest

File version

Not applicable

File size

708

Date (UTC)

09-Mar-2012

Time (UTC)

20:01

File name

Amd64_76381ea7c449c9436085d7436ac4248d_31bf3856ad364e35_6.1.7601.21939_none_7a53aac6e6dc7c6a.manifest

File version

Not applicable

File size

1,058

Date (UTC)

09-Mar-2012

Time (UTC)

20:01

File name

Amd64_microsoft-windows-network-security_31bf3856ad364e35_6.1.7601.21939_none_2bc3796f5a53b01e.manifest

File version

Not applicable

File size

154,831

Date (UTC)

09-Mar-2012

Time (UTC)

16:01

File name

Wow64_microsoft-windows-network-security_31bf3856ad364e35_6.1.7601.21939_none_361823c18eb47219.manifest

File version

Not applicable

File size

94,348

Date (UTC)

09-Mar-2012

Time (UTC)

14:10

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

File name

Ia64_c760f426708a313f66a559039845bf37_31bf3856ad364e35_6.1.7601.21939_none_e4fa1dc3814c9d44.manifest

File version

Not applicable

File size

1,056

Date (UTC)

09-Mar-2012

Time (UTC)

20:01

File name

Ia64_microsoft-windows-network-security_31bf3856ad364e35_6.1.7601.21939_none_cfa681e1a1f447e4.manifest

File version

Not applicable

File size

154,828

Date (UTC)

09-Mar-2012

Time (UTC)

15:15

File name

Wow64_microsoft-windows-network-security_31bf3856ad364e35_6.1.7601.21939_none_361823c18eb47219.manifest

File version

Not applicable

File size

94,348

Date (UTC)

09-Mar-2012

Time (UTC)

14:10

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