You cannot connect to a WWAN after you resume a Windows 7-based computer from sleep

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Article ID: 2615592 - View products that this article applies to.
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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=support
Note 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.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.1.760 0 . 16xxxWindows 7 RTMGDR
    6.1.760 0 . 21xxxWindows 7RTMLDR
    6.1.760 1 . 17xxxWindows 7SP1GDR
    6.1.760 1 . 21xxxWindows 7SP1LDR
  • 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
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Wwanprotdim.dll8.1.7600.1688840,96018-Sep-201101:00x86
Wwansvc.dll8.1.7600.16888186,36818-Sep-201101:00x86
Wwan_profile_v1.xsdNot applicable6,20110-Jun-200921:42Not applicable
Wwanprotdim.dll8.1.7600.2105740,96018-Sep-201101:07x86
Wwansvc.dll8.1.7600.21057186,36818-Sep-201101:07x86
Wwan_profile_v1.xsdNot applicable6,20110-Jun-200921:42Not applicable
Wwanprotdim.dll8.1.7601.1769540,96018-Sep-201100:59x86
Wwansvc.dll8.1.7601.17695186,36818-Sep-201100:59x86
Wwan_profile_v1.xsdNot applicable6,20110-Jun-200921:42Not applicable
Wwanprotdim.dll8.1.7601.2182240,96018-Sep-201102:41x86
Wwansvc.dll8.1.7601.21822186,36818-Sep-201102:41x86
Wwan_profile_v1.xsdNot applicable6,20110-Jun-200921:42Not applicable
For all supported x64-based versions of Windows 7
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Wwanprotdim.dll8.1.7600.1688848,64018-Sep-201101:44x64
Wwansvc.dll8.1.7600.16888229,88818-Sep-201101:44x64
Wwan_profile_v1.xsdNot applicable6,20110-Jun-200921:03Not applicable
Wwanprotdim.dll8.1.7600.2105748,64018-Sep-201101:45x64
Wwansvc.dll8.1.7600.21057229,88818-Sep-201101:45x64
Wwan_profile_v1.xsdNot applicable6,20110-Jun-200921:03Not applicable
Wwanprotdim.dll8.1.7601.1769548,64018-Sep-201101:59x64
Wwansvc.dll8.1.7601.17695229,88818-Sep-201101:59x64
Wwan_profile_v1.xsdNot applicable6,20110-Jun-200921:03Not applicable
Wwanprotdim.dll8.1.7601.2182248,64018-Sep-201103:05x64
Wwansvc.dll8.1.7601.21822229,88818-Sep-201103:05x64
Wwan_profile_v1.xsdNot applicable6,20110-Jun-200921:03Not 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
Collapse this tableExpand this table
File nameUpdate.mum
File versionNot applicable
File size2,285
Date (UTC)18-Sep-2011
Time (UTC)22:39
PlatformNot applicable
File nameX86_1683f799d5adb41559196c34042cf452_31bf3856ad364e35_6.1.7601.17695_none_5f386e5b6f032c77.manifest
File versionNot applicable
File size695
Date (UTC)18-Sep-2011
Time (UTC)22:39
PlatformNot applicable
File nameX86_52c1a75dbe6008e90c158cc2bc80043f_31bf3856ad364e35_6.1.7601.21822_none_ff65d095a1d2995b.manifest
File versionNot applicable
File size695
Date (UTC)18-Sep-2011
Time (UTC)22:39
PlatformNot applicable
File nameX86_5387d478f04a30b460048b86615e4b73_31bf3856ad364e35_6.1.7600.16888_none_2942ef1e25292191.manifest
File versionNot applicable
File size695
Date (UTC)18-Sep-2011
Time (UTC)22:39
PlatformNot applicable
File nameX86_d7f95139a17c10953a658fcb3e757b64_31bf3856ad364e35_6.1.7600.21057_none_d46fd990ab2d2912.manifest
File versionNot applicable
File size695
Date (UTC)18-Sep-2011
Time (UTC)22:39
PlatformNot applicable
File nameX86_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7600.16888_none_a147f76b80675546.manifest
File versionNot applicable
File size49,377
Date (UTC)18-Sep-2011
Time (UTC)01:31
PlatformNot applicable
File nameX86_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7600.21057_none_a1f0dbd2996dbb28.manifest
File versionNot applicable
File size49,377
Date (UTC)18-Sep-2011
Time (UTC)01:33
PlatformNot applicable
File nameX86_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7601.17695_none_a32083a77d98911e.manifest
File versionNot applicable
File size49,377
Date (UTC)18-Sep-2011
Time (UTC)01:26
PlatformNot applicable
File nameX86_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7601.21822_none_a3f2d0ee96801e73.manifest
File versionNot applicable
File size49,377
Date (UTC)18-Sep-2011
Time (UTC)03:08
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7
Collapse this tableExpand this table
File nameAmd64_566654eba83480dffd12ae4a77233566_31bf3856ad364e35_6.1.7601.21822_none_f15520be09cc6f6f.manifest
File versionNot applicable
File size699
Date (UTC)18-Sep-2011
Time (UTC)22:39
PlatformNot applicable
File nameAmd64_7157f2b822407aa9446095e78c0d3921_31bf3856ad364e35_6.1.7601.17695_none_60a2c062de9cd3a0.manifest
File versionNot applicable
File size699
Date (UTC)18-Sep-2011
Time (UTC)22:39
PlatformNot applicable
File nameAmd64_96474dafc4e720c953f34e89207f1398_31bf3856ad364e35_6.1.7600.21057_none_cc5138df76b66f85.manifest
File versionNot applicable
File size699
Date (UTC)18-Sep-2011
Time (UTC)22:39
PlatformNot applicable
File nameAmd64_ea9c2d4c615d87b99e1da31a35fcbe54_31bf3856ad364e35_6.1.7600.16888_none_5eaab9f1536f043f.manifest
File versionNot applicable
File size699
Date (UTC)18-Sep-2011
Time (UTC)22:39
PlatformNot applicable
File nameAmd64_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7600.16888_none_fd6692ef38c4c67c.manifest
File versionNot applicable
File size49,381
Date (UTC)18-Sep-2011
Time (UTC)02:25
PlatformNot applicable
File nameAmd64_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7600.21057_none_fe0f775651cb2c5e.manifest
File versionNot applicable
File size49,381
Date (UTC)18-Sep-2011
Time (UTC)02:11
PlatformNot applicable
File nameAmd64_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7601.17695_none_ff3f1f2b35f60254.manifest
File versionNot applicable
File size49,381
Date (UTC)18-Sep-2011
Time (UTC)02:25
PlatformNot applicable
File nameAmd64_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7601.21822_none_00116c724edd8fa9.manifest
File versionNot applicable
File size49,381
Date (UTC)18-Sep-2011
Time (UTC)04:13
PlatformNot applicable
File namePackage_1_for_kb2615592_bf~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot applicable
File size1,774
Date (UTC)18-Sep-2011
Time (UTC)22:40
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,301
Date (UTC)18-Sep-2011
Time (UTC)22:39
PlatformNot applicable

Properties

Article ID: 2615592 - Last Review: December 28, 2012 - Revision: 3.0
Applies to
  • Windows 7 Starter
  • Windows 7 Home Premium
  • Windows 7 Home Basic
  • Windows 7 Enterprise
  • Windows 7 Professional
  • Windows 7 Ultimate
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter KB2615592

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