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Wireless Hosted Network feature does not work in Windows 7 or Windows Server 2008 R2

View products that this article applies to.

Symptoms

Consider the following scenario:
  • You have a Windows 7-based or Windows Server 2008 R2-based computer that has a Hosted Network-capable wireless adapter installed.
  • You enable the Wireless Hosted Network feature to use Virtual Wi-Fi on this computer.
  • You create a software-based wireless access point (AP) that uses a designated virtual wireless adapter.
  • You connect a client computer to the software-based wireless AP.
  • You stop and start the software-based wireless AP repeatedly.
In this scenario, the Internet Connection Sharing service freezes. Additionally, the client computer cannot use Virtual Wi-Fi until you restart the system.

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Cause

This issue occurs because of a deadlock in Ipnathlp.dll.

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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 website:
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 Service Pack 1 (SP1) or Windows Server 2008 R2 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 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 and 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:
    VersionProductMilestoneService branch
    6.1.760
    0.16xxx    		Windows 7 and Windows Server 2008 R2RTMGDR
    6.1.760
    1.18xxx    		Windows 7 and Windows Server 2008 R2SP1GDR
    6.1.760
    1.22xxx    		Windows 7 and Windows Server 2008 R2SP1LDR
  • 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 7 and 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 x86-based versions of Windows 7
File nameFile versionFile sizeDateTimePlatform
Cmnicfg.xmlNot applicable5,86810-Jun-200921:20Not applicable
Icsunattend.exe6.1.7600.1638514,33614-Jul-200901:14x86
Ipcfg.xmlNot applicable13,45110-Jun-200921:20Not applicable
Ipnathlp.dll6.1.7601.18037300,03222-Dec-201204:39x86
Osinfo.xmlNot applicable78010-Jun-200921:20Not applicable
Potscfg.xmlNot applicable2,61210-Jun-200921:20Not applicable
Pppcfg.xmlNot applicable14,43410-Jun-200921:20Not applicable
Cmnicfg.xmlNot applicable5,86810-Jun-200921:20Not applicable
Icsunattend.exe6.1.7600.1638514,33614-Jul-200901:14x86
Ipcfg.xmlNot applicable13,45110-Jun-200921:20Not applicable
Ipnathlp.dll6.1.7601.22201300,03222-Dec-201204:39x86
Osinfo.xmlNot applicable78010-Jun-200921:20Not applicable
Potscfg.xmlNot applicable2,61210-Jun-200921:20Not applicable
Pppcfg.xmlNot applicable14,43410-Jun-200921:20Not applicable
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Cmnicfg.xmlNot applicable5,86810-Jun-200920:38Not applicable
Icsunattend.exe6.1.7600.1638516,89614-Jul-200901:39x64
Ipcfg.xmlNot applicable13,45110-Jun-200920:38Not applicable
Ipnathlp.dll6.1.7601.18037358,91222-Dec-201205:44x64
Osinfo.xmlNot applicable78010-Jun-200920:38Not applicable
Potscfg.xmlNot applicable2,61210-Jun-200920:38Not applicable
Pppcfg.xmlNot applicable14,43410-Jun-200920:38Not applicable
Cmnicfg.xmlNot applicable5,86810-Jun-200920:38Not applicable
Icsunattend.exe6.1.7600.1638516,89614-Jul-200901:39x64
Ipcfg.xmlNot applicable13,45110-Jun-200920:38Not applicable
Ipnathlp.dll6.1.7601.22201358,91222-Dec-201205:33x64
Osinfo.xmlNot applicable78010-Jun-200920:38Not applicable
Potscfg.xmlNot applicable2,61210-Jun-200920:38Not applicable
Pppcfg.xmlNot applicable14,43410-Jun-200920:38Not applicable
For all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Cmnicfg.xmlNot applicable5,86810-Jun-200920:42Not applicable
Icsunattend.exe6.1.7600.1638540,96014-Jul-200901:44IA-64
Ipcfg.xmlNot applicable13,45110-Jun-200920:42Not applicable
Ipnathlp.dll6.1.7601.18037726,01622-Dec-201204:27IA-64
Osinfo.xmlNot applicable78010-Jun-200920:42Not applicable
Potscfg.xmlNot applicable2,61210-Jun-200920:42Not applicable
Pppcfg.xmlNot applicable14,43410-Jun-200920:42Not applicable
Cmnicfg.xmlNot applicable5,86810-Jun-200920:42Not applicable
Icsunattend.exe6.1.7600.1638540,96014-Jul-200901:44IA-64
Ipcfg.xmlNot applicable13,45110-Jun-200920:42Not applicable
Ipnathlp.dll6.1.7601.22201726,01622-Dec-201204:33IA-64
Osinfo.xmlNot applicable78010-Jun-200920:42Not applicable
Potscfg.xmlNot applicable2,61210-Jun-200920:42Not applicable
Pppcfg.xmlNot applicable14,43410-Jun-200920:42Not applicable

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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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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 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
File nameX86_microsoft-windows-sharedaccess_31bf3856ad364e35_6.1.7601.18037_none_06c20951a79c0d37.manifest
File versionNot applicable
File size47,219
Date (UTC)24-Dec-2012
Time (UTC)10:08
PlatformNot applicable
File nameX86_microsoft-windows-sharedaccess_31bf3856ad364e35_6.1.7601.22201_none_0766160ac0a6be4b.manifest
File versionNot applicable
File size47,219
Date (UTC)24-Dec-2012
Time (UTC)10:08
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameAmd64_microsoft-windows-sharedaccess_31bf3856ad364e35_6.1.7601.18037_none_62e0a4d55ff97e6d.manifest
File versionNot applicable
File size47,225
Date (UTC)24-Dec-2012
Time (UTC)10:10
PlatformNot applicable
File nameAmd64_microsoft-windows-sharedaccess_31bf3856ad364e35_6.1.7601.22201_none_6384b18e79042f81.manifest
File versionNot applicable
File size47,225
Date (UTC)24-Dec-2012
Time (UTC)10:10
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
File nameIa64_microsoft-windows-sharedaccess_31bf3856ad364e35_6.1.7601.18037_none_06c3ad47a79a1633.manifest
File versionNot applicable
File size47,222
Date (UTC)24-Dec-2012
Time (UTC)10:06
PlatformNot applicable
File nameIa64_microsoft-windows-sharedaccess_31bf3856ad364e35_6.1.7601.22201_none_0767ba00c0a4c747.manifest
File versionNot applicable
File size47,222
Date (UTC)24-Dec-2012
Time (UTC)10:06
PlatformNot applicable

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Keywords: kb, kbautohotfix, kbqfe, kbhotfixserver, kbfix, kbsurveynew, kbexpertiseadvanced

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Article Info
Article ID : 2796725
Revision : 1
Created on : 1/7/2017
Published on : 2/21/2013
Exists online : False
Views : 174