Symptoms

When a computer connects to a Windows Server 2008 R2-based web server by using the IP over HTTPS (IP-HTTPS) protocol, the connection may be lost after two minutes of idle time.

When this issue occurs, applications that rely on the IP-HTTPS connection do not work correctly. For example, you deploy a Group Policy object (GPO) to remote clients in a domain that has Microsoft Forefront Unified Access Gateway (UAG) DirectAccess. In this scenario, the clients that use the IP-HTTPS protocol might not obtain the GPO because IP-HTTPS connection times out.

Cause

This issue occurs because an IP-HTTPS connection times out after two minutes of idle time.

Resolution

To resolve this issue, apply the following hotfix on the web server. After you install this hotfix, the time-out for IP-HTTPS connections is changed to 30 minutes (1800 seconds).

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 this specific problem.

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, submit a request to 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 Web site:

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

  • Windows Server 2008 R2 Service Pack 1 (SP1)

For more information about how to obtain a 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

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

322756 How to back up and restore the registry in WindowsTo change the EntityBody timer to a value other than 30 minutes, follow these steps:

  1. Click Start start button , type regedit in the Start Search box, and then press ENTER.

  2. Locate and then click the following registry key:
    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\IPHLPSVC\Parameters\IPHTTPS\IPHTTPSInterface

  3. Click Edit, point to New, and then click DWORD Value.

  4. Type HttpEntityBodyTimeout, and then press ENTER.

  5. Click Edit, and then click Modify.

  6. Type a value that is from 120-7200.

Note The HttpEntityBodyTimeout entry is for the EntityBody timer and is in units of seconds.

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 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

    SR_Level

    Service branch

    6.1.760
    0.
    16xxx

    Windows Server 2008 R2

    RTM

    GDR

    6.1.760
    0.
    20xxx

    Windows Server 2008 R2

    RTM

    LDR

    6.1.760
    1.
    21xxx

    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 for Windows Server 2008 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 x64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Iphlpsvc.dll

6.1.7600.20967

569,344

14-May-2011

07:34

x64

Iphlpsvcmigplugin.dll

6.1.7600.16385

60,416

14-Jul-2009

01:41

x64

Iphlpsvc.dll

6.1.7601.21728

570,368

14-May-2011

07:11

x64

Iphlpsvcmigplugin.dll

6.1.7600.16385

60,416

14-Jul-2009

01:41

x64

Iphlpsvcmigplugin.dll

6.1.7600.20967

51,200

14-May-2011

06:32

x86

Iphlpsvcmigplugin.dll

6.1.7601.21728

51,200

14-May-2011

07:40

x86

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

File name

File version

File size

Date

Time

Platform

Iphlpsvc.dll

6.1.7600.20967

980,480

14-May-2011

06:19

IA-64

Iphlpsvcmigplugin.dll

6.1.7600.16385

133,632

14-Jul-2009

01:46

IA-64

Iphlpsvc.dll

6.1.7601.21728

982,016

14-May-2011

06:14

IA-64

Iphlpsvcmigplugin.dll

6.1.7600.16385

133,632

14-Jul-2009

01:46

IA-64

Iphlpsvcmigplugin.dll

6.1.7600.20967

51,200

14-May-2011

06:32

x86

Iphlpsvcmigplugin.dll

6.1.7601.21728

51,200

14-May-2011

07:40

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 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

For more information about the HTTP_TIMEOUT_LIMIT_INFO structure, visit the following MSDN website:

General information about the HTTP_TIMEOUT_LIMIT_INFO structureFor more information about how to plan for IP-HTTPS, visit the following TechNet website:

General information about how to plan for IP-HTTPS

Additional file information

Additional file information for Windows Server 2008 R2

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

File name

Amd64_21cad67c669cae0d59f9ce6e80ae375d_31bf3856ad364e35_6.1.7600.20967_none_9bbfda002648c083.manifest

File version

Not applicable

File size

720

Date (UTC)

16-May-2011

Time (UTC)

11:33

File name

Amd64_2a286f6fb038e892f0fec6210d6d3cd3_31bf3856ad364e35_6.1.7601.21728_none_27309522ce5d6c1c.manifest

File version

Not applicable

File size

1,082

Date (UTC)

16-May-2011

Time (UTC)

11:33

File name

Amd64_47820fe9fd904ea39ffaf100e7a9bb83_31bf3856ad364e35_6.1.7601.21728_none_759810326718e179.manifest

File version

Not applicable

File size

720

Date (UTC)

16-May-2011

Time (UTC)

11:33

File name

Amd64_a649623f4cb924bd358de4f3abf1484a_31bf3856ad364e35_6.1.7601.21728_none_7249e43fd7abc628.manifest

File version

Not applicable

File size

720

Date (UTC)

16-May-2011

Time (UTC)

11:33

File name

Amd64_afcd0d91365138eba675942cf9c5bdf6_31bf3856ad364e35_6.1.7600.20967_none_293761ba1bd79d32.manifest

File version

Not applicable

File size

720

Date (UTC)

16-May-2011

Time (UTC)

11:33

File name

Amd64_b5262876c6a3f9a6c1b7db6d624f2d0e_31bf3856ad364e35_6.1.7600.20967_none_dea595f8013d9d76.manifest

File version

Not applicable

File size

1,082

Date (UTC)

16-May-2011

Time (UTC)

11:33

File name

Amd64_microsoft-windows-i..oexistencemigration_31bf3856ad364e35_6.1.7600.20967_none_6e794b2eaf16fea6.manifest

File version

Not applicable

File size

131,043

Date (UTC)

16-May-2011

Time (UTC)

11:40

File name

Amd64_microsoft-windows-i..oexistencemigration_31bf3856ad364e35_6.1.7601.21728_none_708be82eac1c1425.manifest

File version

Not applicable

File size

131,043

Date (UTC)

16-May-2011

Time (UTC)

11:40

File name

Wow64_microsoft-windows-i..oexistencemigration_31bf3856ad364e35_6.1.7600.20967_none_78cdf580e377c0a1.manifest

File version

Not applicable

File size

123,749

Date (UTC)

14-May-2011

Time (UTC)

06:49

File name

Wow64_microsoft-windows-i..oexistencemigration_31bf3856ad364e35_6.1.7601.21728_none_7ae09280e07cd620.manifest

File version

Not applicable

File size

123,749

Date (UTC)

14-May-2011

Time (UTC)

08:03

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

File name

Ia64_a649623f4cb924bd358de4f3abf1484a_31bf3856ad364e35_6.1.7601.21728_none_162cecb21f4c5dee.manifest

File version

Not applicable

File size

719

Date (UTC)

16-May-2011

Time (UTC)

11:33

File name

Ia64_a9d83fabda26cbe2c2829c6f877c89a7_31bf3856ad364e35_6.1.7601.21728_none_8378a02796e2a578.manifest

File version

Not applicable

File size

718

Date (UTC)

16-May-2011

Time (UTC)

11:33

File name

Ia64_afcd0d91365138eba675942cf9c5bdf6_31bf3856ad364e35_6.1.7600.20967_none_cd1a6a2c637834f8.manifest

File version

Not applicable

File size

719

Date (UTC)

16-May-2011

Time (UTC)

11:33

File name

Ia64_c722d57588f1ca28f3d72af96bdd2ffd_31bf3856ad364e35_6.1.7600.20967_none_14429d00020bada5.manifest

File version

Not applicable

File size

718

Date (UTC)

16-May-2011

Time (UTC)

11:33

File name

Ia64_microsoft-windows-i..oexistencemigration_31bf3856ad364e35_6.1.7600.20967_none_125c53a0f6b7966c.manifest

File version

Not applicable

File size

131,040

Date (UTC)

16-May-2011

Time (UTC)

11:33

File name

Ia64_microsoft-windows-i..oexistencemigration_31bf3856ad364e35_6.1.7601.21728_none_146ef0a0f3bcabeb.manifest

File version

Not applicable

File size

131,040

Date (UTC)

16-May-2011

Time (UTC)

11:33

File name

Wow64_microsoft-windows-i..oexistencemigration_31bf3856ad364e35_6.1.7600.20967_none_78cdf580e377c0a1.manifest

File version

Not applicable

File size

123,749

Date (UTC)

14-May-2011

Time (UTC)

06:49

File name

Wow64_microsoft-windows-i..oexistencemigration_31bf3856ad364e35_6.1.7601.21728_none_7ae09280e07cd620.manifest

File version

Not applicable

File size

123,749

Date (UTC)

14-May-2011

Time (UTC)

08:03

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