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Symptoms

Consider the following scenario:

  • You configure a stand-alone Distributed File System (DFS) root on a Windows Server 2012-based or Windows Server 2008 R2-based failover cluster.

  • You configure one or more Windows Server 2008 R2-based failover cluster nodes for the DFS resource.

  • You map a network drive to the DFS root on a client computer that is running Windows 7 or Windows Server 2008 R2.

  • When a cluster failover occurs, you try to access the mapped network drive from the client computer by using the Server Message Block (SMB) protocol version 2.

In this scenario, you cannot connect to the mapped network drive. Additionally, you receive an error message that resembles the following:

Title: Location is not available
Body: Path of the folder refers to a location that is unavailable. It could be on a hard drive on this computer, or on a network. Check to make sure that the disk is properly inserted, or that you are connected to the Internet or your network, and then try again. If it still cannot be located, the information might have been moved to a different location.

Additionally, you still cannot connect to the mapped network drive after the failover occurs until you restart the computer or log off the computer and log on it again.

Resolution

Hotfix information

To resolve this issue, install the following hotfix package on the Windows Server 2012-based or the Windows Server 2008 R2-based failover cluster node.

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 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:

976932Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To apply this hotfix, 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 8 and Windows Server 2012 file information notes

Important Windows 8 hotfixes and Windows Server 2012 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 8/Windows Server 2012" 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

    Milestone

    Service branch

    6.2.920  0.21xxx

    Windows 8 and Windows Server 2012

    RTM

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" 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 8


File name

File version

File size

Date

Time

Platform

Srv2.sys

6.2.9200.21409

551,936

05-Mar-2015

03:28

x86

For all supported x64-based versions of Windows 8 or Windows Server 2012


File name

File version

File size

Date

Time

Platform

Srv2.sys

6.2.9200.21409

674,304

05-Mar-2015

04:29

x64

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

    Milestone

    Service branch

    6.1.760
    1.22xxx

    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" 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 x64-based versions of Windows Server 2008 R2


File name

File version

File size

Date

Time

Platform

Srv2.sys

6.1.7601.22100

408,576

27-Aug-2012

15:03

x64

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


File name

File version

File size

Date

Time

Platform

Srv2.sys

6.1.7601.22100

795,648

27-Aug-2012

14:23

IA-64


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 how to create a DFS root, go to the following Microsoft website:

General information about how to create a DFS rootFor more information about failover clusters, go to the following Microsoft website:

General information about failover clustersFor more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows 8 and Windows Server 2012

Additional files for all supported x86-based versions of Windows 8


File property

Value

File name

X86_08f3afac55205fbe78bfa5a783ea4bc3_31bf3856ad364e35_6.2.9200.21409_none_e89c22f81919862e.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_1e2f89dcb871a6e8b9e20197541f3a1f_31bf3856ad364e35_6.2.9200.21409_none_92e9d8fd082724ac.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_1ee86a9fa7d44f66fa9f235ddf43f34b_31bf3856ad364e35_6.2.9200.21409_none_37366c2ac0773cd1.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_27e37e51129a2678009e73927ac8023a_31bf3856ad364e35_6.2.9200.21409_none_89ee0b9461ca977f.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_33a2e9c2321e408ef61443b03c55273b_31bf3856ad364e35_6.2.9200.21409_none_3105c9e4d35ab9a8.manifest

File version

Not applicable

File size

700

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_3d31a3e26dbfa76f8a3106f802b76296_31bf3856ad364e35_6.2.9200.21409_none_b80a0fe9d4cb6791.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_3e76028a69f75c65cc8d0fbc0074e0ae_31bf3856ad364e35_6.2.9200.21409_none_99c7c1f6b199af6a.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_67ecd0446b036fdfed95655b0720fe4c_31bf3856ad364e35_6.2.9200.21409_none_2aa6a93ae2d1c27c.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_724c9c97a0b695724213537b6f962d0e_31bf3856ad364e35_6.2.9200.21409_none_66fcc3e3d57ff7d7.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_74e6bda2ce38e1bfe4934a95df0c62eb_31bf3856ad364e35_6.2.9200.21409_none_506f98f09731e4c4.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_83f30747fe4fd1b87136668a5e8f7a34_31bf3856ad364e35_6.2.9200.21409_none_6ad9cdb8143ce467.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_89b99b242e708270317b2142f27451ba_31bf3856ad364e35_6.2.9200.21409_none_08d106700e24e1ca.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_a67866b03a9f6cadc306d730932e21f5_31bf3856ad364e35_6.2.9200.21409_none_97046cac9864b6ba.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_a68f06d8e7d871998dd28e048d4e2670_31bf3856ad364e35_6.2.9200.21409_none_36a1c515ed29f29c.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_ac170ff3f8aad4cca888d6e9965b4b17_31bf3856ad364e35_6.2.9200.21409_none_27b618dfca8222ec.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_aecc23c8adbb0e0094745d65270889e4_31bf3856ad364e35_6.2.9200.21409_none_3fe2e97958f37d3f.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_b1706f92b7621a4e0de7aa8f42c63cd0_31bf3856ad364e35_6.2.9200.21409_none_56c00b97679fda3e.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_b1b82b0f877d5ceca4424fa05ce09432_31bf3856ad364e35_6.2.9200.21409_none_5d2bdeb8cec35bec.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_b2c1b8b73f3c5f6f6735c42eeb59e64c_31bf3856ad364e35_6.2.9200.21409_none_68e0b57aba788745.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_c0c74836e7f5f0ac6d12d4bcc5422a3e_31bf3856ad364e35_6.2.9200.21409_none_96d9e451186f8ca6.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_c78e1b20ad5f47c270f1046226e57cf2_31bf3856ad364e35_6.2.9200.21409_none_59c308465277163e.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_d4b5e07c4e116c1eda91e044232767bd_31bf3856ad364e35_6.2.9200.21409_none_1d958beaee3f3f59.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_df3f63eb228d9c5d36478512b191d904_31bf3856ad364e35_6.2.9200.21409_none_20cdb99f20176486.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_f6d1725103f05f559ee8f32b7873d083_31bf3856ad364e35_6.2.9200.21409_none_9965b0be220375f8.manifest

File version

Not applicable

File size

708

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

X86_microsoft-windows-smbserver-v2_31bf3856ad364e35_6.2.9200.21409_none_d77cac24e0bad11d.manifest

File version

Not applicable

File size

259,944

Date (UTC)

05-Mar-2015

Time (UTC)

04:56

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 8 and Windows Server 2012


File property

Value

File name

Amd64_02cbe699b5f17a4a4a4f0906acd3352f_31bf3856ad364e35_6.2.9200.21409_none_ad09f34173f64156.manifest

File version

Not applicable

File size

712

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

Amd64_13a94b3a7092ad864be0375144960d31_31bf3856ad364e35_6.2.9200.21409_none_915decd9ee0d589d.manifest

File version

Not applicable

File size

712

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

Amd64_151e4c8cecda0a8f3166d04a2e75a85c_31bf3856ad364e35_6.2.9200.21409_none_f00038d608536215.manifest

File version

Not applicable

File size

712

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

Platform

Not applicable

File name

Amd64_180e07a004c97dd58b67b9844713813b_31bf3856ad364e35_6.2.9200.21409_none_61eae82df1960be1.manifest

File version

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File size

712

Date (UTC)

07-Mar-2015

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Platform

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File name

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File size

712

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File name

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File size

712

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07-Mar-2015

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File name

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File size

712

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07-Mar-2015

Time (UTC)

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File name

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712

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07-Mar-2015

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02:32

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File size

712

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07-Mar-2015

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File size

712

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07-Mar-2015

Time (UTC)

02:32

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File size

712

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07-Mar-2015

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02:32

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File name

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File size

712

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07-Mar-2015

Time (UTC)

02:32

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File name

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File size

712

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07-Mar-2015

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02:32

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File size

712

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07-Mar-2015

Time (UTC)

02:32

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File name

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File size

712

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

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File name

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File size

712

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07-Mar-2015

Time (UTC)

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File size

712

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Time (UTC)

02:32

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Time (UTC)

02:32

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File name

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File size

712

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07-Mar-2015

Time (UTC)

02:32

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File name

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File size

712

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

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File name

Amd64_d8fa926b17d1e92773e72d7f5e2f8cf9_31bf3856ad364e35_6.2.9200.21409_none_1d6c846d3344b5d9.manifest

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File size

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Time (UTC)

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File name

Amd64_f49213ebde328660d9ed47e1b0bb4538_31bf3856ad364e35_6.2.9200.21409_none_892f903a798670e3.manifest

File version

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File size

704

Date (UTC)

07-Mar-2015

Time (UTC)

02:32

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File name

Amd64_microsoft-windows-smbserver-v2_31bf3856ad364e35_6.2.9200.21409_none_339b47a899184253.manifest

File version

Not applicable

File size

259,948

Date (UTC)

05-Mar-2015

Time (UTC)

07:23

Platform

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Additional file information for Windows Server 2008 R2

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


File name

Amd64_7e2dd8ec6385acfd1f31815f306d93b1_31bf3856ad364e35_6.1.7601.22100_none_91f2709ecd751224.manifest

File version

Not applicable

File size

704

Date (UTC)

28-Aug-2012

Time (UTC)

07:01

Platform

Not applicable

File name

Amd64_microsoft-windows-smbserver-v2_31bf3856ad364e35_6.1.7601.22100_none_38a2ea2726348462.manifest

File version

Not applicable

File size

2,657

Date (UTC)

27-Aug-2012

Time (UTC)

18:20

Platform

Not applicable

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


File name

Ia64_83e31a6933e42e71e2742e6e836c57f3_31bf3856ad364e35_6.1.7601.22100_none_3b6f744eb67b1d74.manifest

File version

Not applicable

File size

702

Date (UTC)

28-Aug-2012

Time (UTC)

07:01

Platform

Not applicable

File name

Ia64_microsoft-windows-smbserver-v2_31bf3856ad364e35_6.1.7601.22100_none_dc85f2996dd51c28.manifest

File version

Not applicable

File size

2,656

Date (UTC)

27-Aug-2012

Time (UTC)

18:07

Platform

Not applicable

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