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Symptoms

Consider the following scenario:

  • You connect to a Wireless Wide Area Network (WWAN) by using a mobile broadband modem on a computer that is running Windows 7.

  • The computer enters sleep mode.

  • You resume the computer from sleep.

In this scenario, the WWAN AutoConfig service may stop responding. When this issue occurs, you cannot connect to the WWAN. You cannot restart the service, and you must restart the computer to recover from this issue.

Cause

This issue occurs because of a deadlock in the WWAN AutoConfig service that is caused by a timing issue.

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 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 Windows 7 or Windows 7 Service Pack 1 (SP1).

For more information about how to obtain a Windows 7 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 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 7

    RTM

    GDR

    6.1.760
    0.
    21xxx

    Windows 7

    RTM

    LDR

    6.1.760
    1.
    17xxx

    Windows 7

    SP1

    GDR

    6.1.760
    1.
    21xxx

    Windows 7

    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 7" 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 7

File name

File version

File size

Date

Time

Platform

Wwanprotdim.dll

8.1.7600.16888

40,960

18-Sep-2011

01:00

x86

Wwansvc.dll

8.1.7600.16888

186,368

18-Sep-2011

01:00

x86

Wwan_profile_v1.xsd

Not applicable

6,201

10-Jun-2009

21:42

Not applicable

Wwanprotdim.dll

8.1.7600.21057

40,960

18-Sep-2011

01:07

x86

Wwansvc.dll

8.1.7600.21057

186,368

18-Sep-2011

01:07

x86

Wwan_profile_v1.xsd

Not applicable

6,201

10-Jun-2009

21:42

Not applicable

Wwanprotdim.dll

8.1.7601.17695

40,960

18-Sep-2011

00:59

x86

Wwansvc.dll

8.1.7601.17695

186,368

18-Sep-2011

00:59

x86

Wwan_profile_v1.xsd

Not applicable

6,201

10-Jun-2009

21:42

Not applicable

Wwanprotdim.dll

8.1.7601.21822

40,960

18-Sep-2011

02:41

x86

Wwansvc.dll

8.1.7601.21822

186,368

18-Sep-2011

02:41

x86

Wwan_profile_v1.xsd

Not applicable

6,201

10-Jun-2009

21:42

Not applicable

For all supported x64-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Wwanprotdim.dll

8.1.7600.16888

48,640

18-Sep-2011

01:44

x64

Wwansvc.dll

8.1.7600.16888

229,888

18-Sep-2011

01:44

x64

Wwan_profile_v1.xsd

Not applicable

6,201

10-Jun-2009

21:03

Not applicable

Wwanprotdim.dll

8.1.7600.21057

48,640

18-Sep-2011

01:45

x64

Wwansvc.dll

8.1.7600.21057

229,888

18-Sep-2011

01:45

x64

Wwan_profile_v1.xsd

Not applicable

6,201

10-Jun-2009

21:03

Not applicable

Wwanprotdim.dll

8.1.7601.17695

48,640

18-Sep-2011

01:59

x64

Wwansvc.dll

8.1.7601.17695

229,888

18-Sep-2011

01:59

x64

Wwan_profile_v1.xsd

Not applicable

6,201

10-Jun-2009

21:03

Not applicable

Wwanprotdim.dll

8.1.7601.21822

48,640

18-Sep-2011

03:05

x64

Wwansvc.dll

8.1.7601.21822

229,888

18-Sep-2011

03:05

x64

Wwan_profile_v1.xsd

Not applicable

6,201

10-Jun-2009

21:03

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

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

File name

Update.mum

File version

Not applicable

File size

2,285

Date (UTC)

18-Sep-2011

Time (UTC)

22:39

Platform

Not applicable

File name

X86_1683f799d5adb41559196c34042cf452_31bf3856ad364e35_6.1.7601.17695_none_5f386e5b6f032c77.manifest

File version

Not applicable

File size

695

Date (UTC)

18-Sep-2011

Time (UTC)

22:39

Platform

Not applicable

File name

X86_52c1a75dbe6008e90c158cc2bc80043f_31bf3856ad364e35_6.1.7601.21822_none_ff65d095a1d2995b.manifest

File version

Not applicable

File size

695

Date (UTC)

18-Sep-2011

Time (UTC)

22:39

Platform

Not applicable

File name

X86_5387d478f04a30b460048b86615e4b73_31bf3856ad364e35_6.1.7600.16888_none_2942ef1e25292191.manifest

File version

Not applicable

File size

695

Date (UTC)

18-Sep-2011

Time (UTC)

22:39

Platform

Not applicable

File name

X86_d7f95139a17c10953a658fcb3e757b64_31bf3856ad364e35_6.1.7600.21057_none_d46fd990ab2d2912.manifest

File version

Not applicable

File size

695

Date (UTC)

18-Sep-2011

Time (UTC)

22:39

Platform

Not applicable

File name

X86_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7600.16888_none_a147f76b80675546.manifest

File version

Not applicable

File size

49,377

Date (UTC)

18-Sep-2011

Time (UTC)

01:31

Platform

Not applicable

File name

X86_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7600.21057_none_a1f0dbd2996dbb28.manifest

File version

Not applicable

File size

49,377

Date (UTC)

18-Sep-2011

Time (UTC)

01:33

Platform

Not applicable

File name

X86_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7601.17695_none_a32083a77d98911e.manifest

File version

Not applicable

File size

49,377

Date (UTC)

18-Sep-2011

Time (UTC)

01:26

Platform

Not applicable

File name

X86_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7601.21822_none_a3f2d0ee96801e73.manifest

File version

Not applicable

File size

49,377

Date (UTC)

18-Sep-2011

Time (UTC)

03:08

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 7

File name

Amd64_566654eba83480dffd12ae4a77233566_31bf3856ad364e35_6.1.7601.21822_none_f15520be09cc6f6f.manifest

File version

Not applicable

File size

699

Date (UTC)

18-Sep-2011

Time (UTC)

22:39

Platform

Not applicable

File name

Amd64_7157f2b822407aa9446095e78c0d3921_31bf3856ad364e35_6.1.7601.17695_none_60a2c062de9cd3a0.manifest

File version

Not applicable

File size

699

Date (UTC)

18-Sep-2011

Time (UTC)

22:39

Platform

Not applicable

File name

Amd64_96474dafc4e720c953f34e89207f1398_31bf3856ad364e35_6.1.7600.21057_none_cc5138df76b66f85.manifest

File version

Not applicable

File size

699

Date (UTC)

18-Sep-2011

Time (UTC)

22:39

Platform

Not applicable

File name

Amd64_ea9c2d4c615d87b99e1da31a35fcbe54_31bf3856ad364e35_6.1.7600.16888_none_5eaab9f1536f043f.manifest

File version

Not applicable

File size

699

Date (UTC)

18-Sep-2011

Time (UTC)

22:39

Platform

Not applicable

File name

Amd64_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7600.16888_none_fd6692ef38c4c67c.manifest

File version

Not applicable

File size

49,381

Date (UTC)

18-Sep-2011

Time (UTC)

02:25

Platform

Not applicable

File name

Amd64_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7600.21057_none_fe0f775651cb2c5e.manifest

File version

Not applicable

File size

49,381

Date (UTC)

18-Sep-2011

Time (UTC)

02:11

Platform

Not applicable

File name

Amd64_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7601.17695_none_ff3f1f2b35f60254.manifest

File version

Not applicable

File size

49,381

Date (UTC)

18-Sep-2011

Time (UTC)

02:25

Platform

Not applicable

File name

Amd64_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7601.21822_none_00116c724edd8fa9.manifest

File version

Not applicable

File size

49,381

Date (UTC)

18-Sep-2011

Time (UTC)

04:13

Platform

Not applicable

File name

Package_1_for_kb2615592_bf~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

1,774

Date (UTC)

18-Sep-2011

Time (UTC)

22:40

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,301

Date (UTC)

18-Sep-2011

Time (UTC)

22:39

Platform

Not applicable

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