Users who have the remote audio setting enabled cause the RD Session Host servers to freeze intermittently in Windows Server 2012 R2 or Windows Server 2008 R2 SP1

Symptoms

Consider the following scenario:

  • You set up a Remote Desktop Connection Broker (RD Connection Broker), and you create a load-balanced Remote Desktop (RD) Session Host server farm. The servers in the farm are running Windows Server 2012 R2 or Windows Server 2008 R2 Service Pack 1 (SP1).

  • You configure Audio and Video Playback on the RD Session Host servers.

  • Users connect to the RD Session Host servers, and they have the remote audio setting enabled. 

In this situation, the RD Session Host servers freeze intermittently.

Resolution

To resolve this issue in Windows Server 2012 R2, install update 2919355.
To resolve this issue in Windows Server 2008 R2, install the hotfix that is described in this article.

Update information for Windows Server 2012 R2

For more information about how to obtain update 2919355, click the following article number to view the article in the Microsoft Knowledge Base:

2919355 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 Update April, 2014

Hotfix information for Windows Server 2008 R2

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 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 apply this hotfix, you do not have to make any changes to the registry.

Restart requirement

You might have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

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 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 Server 2008 R2

    SP1

    GDR

    6.1.760
    1.22xxx

    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 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 x64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Audiodg.exe

6.1.7601.17514

126,464

20-Nov-10

13:24

x64

Audioeng.dll

6.1.7601.22504

440,320

7-Nov-13

8:50

x64

Audiokse.dll

6.1.7601.22504

499,712

7-Nov-13

8:52

x64

Audioses.dll

6.1.7601.22504

295,936

7-Nov-13

8:50

x64

Audiosrv.dll

6.1.7601.22504

678,912

7-Nov-13

8:50

x64

Encdump.dll

5.0.1.1

283,648

7-Nov-13

8:51

x64

Prod_audio-audiocore.ptxml

Not applicable

667

20-Nov-10

4:25

Not applicable

Audioeng.dll

6.1.7601.22504

374,784

7-Nov-13

7:50

x86

Audiokse.dll

6.1.7601.22504

442,368

7-Nov-13

7:53

x86

Audioses.dll

6.1.7601.22504

195,072

7-Nov-13

7:50

x86

Prod_wow64_audio-audiocore.ptxml

Not applicable

667

7-Nov-13

5:18

Not applicable

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

File name

File version

File size

Date

Time

Platform

Audiodg.exe

6.1.7601.22504

322,048

7-Nov-13

7:37

IA-64

Audioeng.dll

6.1.7601.22504

518,656

7-Nov-13

7:57

IA-64

Audiokse.dll

6.1.7601.22504

339,968

7-Nov-13

7:57

IA-64

Audioses.dll

6.1.7601.22504

606,720

7-Nov-13

7:57

IA-64

Audiosrv.dll

6.1.7601.22504

1,382,400

7-Nov-13

7:57

IA-64

Prod_audio-audiocore.ptxml

Not applicable

667

20-Nov-10

4:06

Not applicable

Audioeng.dll

6.1.7601.22504

374,784

7-Nov-13

7:50

x86

Audiokse.dll

6.1.7601.22504

442,368

7-Nov-13

7:53

x86

Audioses.dll

6.1.7601.22504

195,072

7-Nov-13

7:50

x86

Prod_wow64_audio-audiocore.ptxml

Not applicable

667

7-Nov-13

5:18

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

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