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Symptoms

You have a Windows Server 2012 R2-based computer that's configured to use Load Balancing Failover (LBFO) on a 10-gigabyte (GB) NIC teaming network adapter. However, when you restart the computer, you discover that you've lost network connectivity.

Cause

This problem occurs because of a timing issue during restart that leaves the NIC teaming network adapter in a disconnected state. Specifically, this problem occurs when the following conditions are true:

  • During miniport initialization, the multiplexer (MUX) driver registers its miniport general attributes by using a link state of Unknown.

  • The underlying miniports indicate a status of Connected.

  • The MUX driver recalculates the link state. However, it does not indicate anything because it is still in the initializing state.

  • The MUX driver changes its internal state to Paused and then recalculates its link state.

  • A diff is run between the recalculated link state and the old link state. However, because the two states are the same, no differences are indicated.

Resolution

Hotfix information

A supported hotfix is available from Microsoft Support. 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, go to 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 8.1 or Windows Server 2012 R2.


Additionally, you must first install update 2919355 on Windows 8.1 or Windows Server 2012 R2.

Restart requirement

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

Hotfix replacement information

This hotfix does not replace any previously released hotfix.

The English (United States) 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 8.1 and Windows Server 2012 R2 file information and notesImportant Windows 8.1 and Windows Server 2012 R2 hotfixes are included in the same packages. However, only "Windows 8.1" 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 8.1" 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

    6.3.960 0.16 xxx

    Windows 8.1 and Windows Server 2012 R2

    RTM

    GDR

    6.3.960 0.17 xxx

    Windows 8.1 and Windows Server 2012 R2

    RTM

    DR

  • 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 8.1 and Windows Server 2012 R2" 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 8.1

File name

File version

File size

Date

Time

Platform

Msft_netlbfoteam.cdxml

Not Applicable

7,069

18-Jun-2013

12:26

Not Applicable

Msft_netlbfoteam.format.ps1xml

Not Applicable

2,973

18-Jun-2013

12:26

Not Applicable

Msft_netlbfoteammember.cdxml

Not Applicable

5,764

18-Jun-2013

12:26

Not Applicable

Msft_netlbfoteammember.format.ps1xml

Not Applicable

4,789

18-Jun-2013

12:26

Not Applicable

Msft_netlbfoteamnic.cdxml

Not Applicable

4,824

18-Jun-2013

12:26

Not Applicable

Msft_netlbfoteamnic.format.ps1xml

Not Applicable

4,720

18-Jun-2013

12:26

Not Applicable

Msft_netswitchteam.cdxml

Not Applicable

5,834

18-Jun-2013

12:26

Not Applicable

Msft_netswitchteam.format.ps1xml

Not Applicable

2,428

18-Jun-2013

12:26

Not Applicable

Msft_netswitchteammember.cdxml

Not Applicable

1,234

18-Jun-2013

12:26

Not Applicable

Msft_netswitchteammember.format.ps1xml

Not Applicable

3,380

18-Jun-2013

12:26

Not Applicable

Msnetimplatform.mof

Not Applicable

43,638

21-Aug-2013

23:45

Not Applicable

Ndisimplatcim.dll

6.3.9600.16384

156,160

22-Aug-2013

03:47

x86

Ndisimplatform.dll

6.3.9600.16384

97,792

22-Aug-2013

03:47

x86

Ndisimplatform.sys

6.3.9600.17055

109,568

19-Mar-2014

07:09

x86

Netlbfo.psd1

Not Applicable

1,074

18-Jun-2013

12:26

Not Applicable

Netlbfo.types.ps1xml

Not Applicable

8,547

18-Jun-2013

12:26

Not Applicable

Netswitchteam.mof

Not Applicable

28,338

21-Aug-2013

23:45

Not Applicable

Netswitchteam.psd1

Not Applicable

1,056

18-Jun-2013

12:26

Not Applicable

Netswitchteamcim.dll

6.3.9600.16384

109,056

22-Aug-2013

03:47

x86

For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Msft_netlbfoteam.cdxml

Not Applicable

7,069

18-Jun-2013

14:54

Not Applicable

Msft_netlbfoteam.format.ps1xml

Not Applicable

2,973

18-Jun-2013

14:54

Not Applicable

Msft_netlbfoteammember.cdxml

Not Applicable

5,764

18-Jun-2013

14:54

Not Applicable

Msft_netlbfoteammember.format.ps1xml

Not Applicable

4,789

18-Jun-2013

14:54

Not Applicable

Msft_netlbfoteamnic.cdxml

Not Applicable

4,824

18-Jun-2013

14:54

Not Applicable

Msft_netlbfoteamnic.format.ps1xml

Not Applicable

4,720

18-Jun-2013

14:54

Not Applicable

Msft_netswitchteam.cdxml

Not Applicable

5,834

18-Jun-2013

14:53

Not Applicable

Msft_netswitchteam.format.ps1xml

Not Applicable

2,428

18-Jun-2013

14:53

Not Applicable

Msft_netswitchteammember.cdxml

Not Applicable

1,234

18-Jun-2013

14:53

Not Applicable

Msft_netswitchteammember.format.ps1xml

Not Applicable

3,380

18-Jun-2013

14:53

Not Applicable

Msnetimplatform.mof

Not Applicable

43,638

22-Aug-2013

06:50

Not Applicable

Ndisimplatcim.dll

6.3.9600.16384

199,168

22-Aug-2013

11:12

x64

Ndisimplatform.dll

6.3.9600.16384

117,248

22-Aug-2013

11:12

x64

Ndisimplatform.sys

6.3.9600.17055

124,928

19-Mar-2014

08:07

x64

Netlbfo.psd1

Not Applicable

1,074

18-Jun-2013

14:54

Not Applicable

Netlbfo.types.ps1xml

Not Applicable

8,547

18-Jun-2013

14:54

Not Applicable

Netswitchteam.mof

Not Applicable

28,338

22-Aug-2013

06:50

Not Applicable

Netswitchteam.psd1

Not Applicable

1,056

18-Jun-2013

14:53

Not Applicable

Netswitchteamcim.dll

6.3.9600.17055

141,312

19-Mar-2014

07:29

x64

Msft_netlbfoteam.cdxml

Not Applicable

7,069

18-Jun-2013

12:26

Not Applicable

Msft_netlbfoteam.format.ps1xml

Not Applicable

2,973

18-Jun-2013

12:26

Not Applicable

Msft_netlbfoteammember.cdxml

Not Applicable

5,764

18-Jun-2013

12:26

Not Applicable

Msft_netlbfoteammember.format.ps1xml

Not Applicable

4,789

18-Jun-2013

12:26

Not Applicable

Msft_netlbfoteamnic.cdxml

Not Applicable

4,824

18-Jun-2013

12:26

Not Applicable

Msft_netlbfoteamnic.format.ps1xml

Not Applicable

4,720

18-Jun-2013

12:26

Not Applicable

Msft_netswitchteam.cdxml

Not Applicable

5,834

18-Jun-2013

12:26

Not Applicable

Msft_netswitchteam.format.ps1xml

Not Applicable

2,428

18-Jun-2013

12:26

Not Applicable

Msft_netswitchteammember.cdxml

Not Applicable

1,234

18-Jun-2013

12:26

Not Applicable

Msft_netswitchteammember.format.ps1xml

Not Applicable

3,380

18-Jun-2013

12:26

Not Applicable

Netlbfo.psd1

Not Applicable

1,074

18-Jun-2013

12:26

Not Applicable

Netlbfo.types.ps1xml

Not Applicable

8,547

18-Jun-2013

12:26

Not Applicable

Netswitchteam.psd1

Not Applicable

1,056

18-Jun-2013

12:26

Not Applicable

For all supported ARM-based versions of Windows 8.1

File name

File version

File size

Date

Time

Platform

Msft_netlbfoteam.cdxml

Not Applicable

7,069

18-Jun-2013

14:56

Not Applicable

Msft_netlbfoteam.format.ps1xml

Not Applicable

2,973

18-Jun-2013

14:56

Not Applicable

Msft_netlbfoteammember.cdxml

Not Applicable

5,764

18-Jun-2013

14:56

Not Applicable

Msft_netlbfoteammember.format.ps1xml

Not Applicable

4,789

18-Jun-2013

14:56

Not Applicable

Msft_netlbfoteamnic.cdxml

Not Applicable

4,824

18-Jun-2013

14:56

Not Applicable

Msft_netlbfoteamnic.format.ps1xml

Not Applicable

4,720

18-Jun-2013

14:56

Not Applicable

Msft_netswitchteam.cdxml

Not Applicable

5,834

18-Jun-2013

14:56

Not Applicable

Msft_netswitchteam.format.ps1xml

Not Applicable

2,428

18-Jun-2013

14:56

Not Applicable

Msft_netswitchteammember.cdxml

Not Applicable

1,234

18-Jun-2013

14:56

Not Applicable

Msft_netswitchteammember.format.ps1xml

Not Applicable

3,380

18-Jun-2013

14:56

Not Applicable

Msnetimplatform.mof

Not Applicable

43,638

21-Aug-2013

23:38

Not Applicable

Ndisimplatcim.dll

6.3.9600.16384

141,824

22-Aug-2013

02:57

Not Applicable

Ndisimplatform.dll

6.3.9600.16384

94,208

22-Aug-2013

02:57

Not Applicable

Ndisimplatform.sys

6.3.9600.17055

99,328

19-Mar-2014

05:49

Not Applicable

Netlbfo.psd1

Not Applicable

1,074

18-Jun-2013

14:56

Not Applicable

Netlbfo.types.ps1xml

Not Applicable

8,547

18-Jun-2013

14:56

Not Applicable

Netswitchteam.mof

Not Applicable

28,338

21-Aug-2013

23:38

Not Applicable

Netswitchteam.psd1

Not Applicable

1,056

18-Jun-2013

14:56

Not Applicable

Netswitchteamcim.dll

6.3.9600.16384

103,936

22-Aug-2013

02:57

Not Applicable

Additional file information

Additional file information for Windows 8.1 and for Windows Server 2012 R2

Additional files for all supported x86-based versions of Windows 8.1

File name

Package_1_for_kb2953202~31bf3856ad364e35~x86~~6.3.1.0.mum

File version

Not Applicable

File size

1,829

Date (UTC)

19-Mar-2014

Time (UTC)

18:55

Platform

Not Applicable

File name

Package_for_kb2953202_rtm_gm~31bf3856ad364e35~x86~~6.3.1.0.mum

File version

Not Applicable

File size

1,405

Date (UTC)

19-Mar-2014

Time (UTC)

18:55

Platform

Not Applicable

File name

Package_for_kb2953202_rtm~31bf3856ad364e35~x86~~6.3.1.0.mum

File version

Not Applicable

File size

1,467

Date (UTC)

19-Mar-2014

Time (UTC)

18:55

Platform

Not Applicable

File name

X86_3234d0dd912eb7f362f4b57b8ce5e8d6_31bf3856ad364e35_6.3.9600.17055_none_ca793390b6f1a4fa.manifest

File version

Not Applicable

File size

703

Date (UTC)

19-Mar-2014

Time (UTC)

18:55

Platform

Not Applicable

File name

X86_microsoft-windows-ndis-implatform_31bf3856ad364e35_6.3.9600.17055_none_eaac45a55f5f7e24.manifest

File version

Not Applicable

File size

48,198

Date (UTC)

19-Mar-2014

Time (UTC)

18:55

Platform

Not Applicable

Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File name

Amd64_337bcd19e34a307404e7b479871aea56_31bf3856ad364e35_6.3.9600.17055_none_f6142cf629dd5ed8.manifest

File version

Not Applicable

File size

707

Date (UTC)

19-Mar-2014

Time (UTC)

18:57

Platform

Not Applicable

File name

Amd64_f0993bd6366fdedd127deaf2af8219dd_31bf3856ad364e35_6.3.9600.17055_none_682a056eba05fba7.manifest

File version

Not Applicable

File size

707

Date (UTC)

19-Mar-2014

Time (UTC)

18:57

Platform

Not Applicable

File name

Amd64_microsoft-windows-ndis-implatform_31bf3856ad364e35_6.3.9600.17055_none_46cae12917bcef5a.manifest

File version

Not Applicable

File size

48,202

Date (UTC)

19-Mar-2014

Time (UTC)

18:57

Platform

Not Applicable

File name

Package_1_for_kb2953202~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

2,058

Date (UTC)

19-Mar-2014

Time (UTC)

18:57

Platform

Not Applicable

File name

Package_2_for_kb2953202~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

2,064

Date (UTC)

19-Mar-2014

Time (UTC)

18:57

Platform

Not Applicable

File name

Package_for_kb2953202_rtm_gm~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

1,691

Date (UTC)

19-Mar-2014

Time (UTC)

18:57

Platform

Not Applicable

File name

Package_for_kb2953202_rtm~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

1,920

Date (UTC)

19-Mar-2014

Time (UTC)

18:57

Platform

Not Applicable

File name

Wow64_microsoft-windows-ndis-implatform_31bf3856ad364e35_6.3.9600.17055_none_511f8b7b4c1db155.manifest

File version

Not Applicable

File size

20,681

Date (UTC)

19-Mar-2014

Time (UTC)

12:31

Platform

Not Applicable

Additional files for all supported ARM-based versions of Windows 8.1

File name

Arm_a06ad55eff8e013af82bfece20403899_31bf3856ad364e35_6.3.9600.17055_none_87e83fec013a89e2.manifest

File version

Not Applicable

File size

703

Date (UTC)

19-Mar-2014

Time (UTC)

18:48

Platform

Not Applicable

File name

Arm_microsoft-windows-ndis-implatform_31bf3856ad364e35_6.3.9600.17055_none_eaaeb7fd5f5c9cea.manifest

File version

Not Applicable

File size

48,198

Date (UTC)

19-Mar-2014

Time (UTC)

18:48

Platform

Not Applicable

File name

Package_1_for_kb2953202~31bf3856ad364e35~arm~~6.3.1.0.mum

File version

Not Applicable

File size

1,829

Date (UTC)

19-Mar-2014

Time (UTC)

18:48

Platform

Not Applicable

File name

Package_for_kb2953202_rtm_gm~31bf3856ad364e35~arm~~6.3.1.0.mum

File version

Not Applicable

File size

1,405

Date (UTC)

19-Mar-2014

Time (UTC)

18:48

Platform

Not Applicable

File name

Package_for_kb2953202_rtm~31bf3856ad364e35~arm~~6.3.1.0.mum

File version

Not Applicable

File size

1,467

Date (UTC)

19-Mar-2014

Time (UTC)

18:48

Platform

Not Applicable


Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

Learn about the terminology that Microsoft uses to describe software updates.

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