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Article ID: 935222 - Last Review: October 8, 2011 - Revision: 4.0

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SYMPTOMS

On a Windows Vista-based computer, consider the following scenario:
  • You use Wi-Fi Protected Access (WPA) together with Advanced Encryption Standard (AES) encryption to access wireless networks.
  • A computer certificate is configured correctly on the computer.
  • The computer has the correct permissions to access wireless networks.
In this scenario, you can see that a wireless network is available in the Connect to a network dialog box in the Network and Sharing Center. However, you cannot connect to the wireless network.

CAUSE

This problem occurs because the system does not handle unrecognized "Cipher and Authentication Key Management" (AKM) suites when the system is parsing the following information elements:
  • Robust Secure Network (RSN)
  • WPA

RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
935791  (http://support.microsoft.com/kb/935791/ ) How to obtain the latest Windows Vista service pack

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. 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 (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

No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Windows Vista, x86-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Package_1_for_kb935222~31bf3856ad364e35~x86~~6.0.1.0.mumNot Applicable2,42926-Apr-200715:48Not Applicable
Package_2_for_kb935222~31bf3856ad364e35~x86~~6.0.1.0.mumNot Applicable1,79626-Apr-200715:48Not Applicable
Update.mumNot Applicable1,88526-Apr-200715:48Not Applicable
X86_2b6897e2fd1d18d15752e85693719d40_31bf3856ad364e35_6.0.6000.20586_none_4a82f74f1c137d64.manifestNot Applicable71326-Apr-200715:48Not Applicable
X86_e29f4295bc570deb90adb1eb88e4b157_31bf3856ad364e35_6.0.6000.20586_none_e3832f0cab159dea.manifestNot Applicable69526-Apr-200715:48Not Applicable
X86_fb50ab363f3258e3ed4654f8f8a92972_31bf3856ad364e35_6.0.6000.20586_none_e4cd03f65f5f4044.manifestNot Applicable70026-Apr-200715:48Not Applicable
X86_microsoft-windows-l..securityhelperclass_31bf3856ad364e35_6.0.6000.20586_none_846bc1ac950dce90.manifestNot Applicable16,97226-Apr-200715:52Not Applicable
X86_microsoft-windows-native-80211_31bf3856ad364e35_6.0.6000.20586_none_4d5b85c5ab25125d.manifestNot Applicable5,22926-Apr-200715:52Not Applicable
X86_microsoft-windows-wlansvc_31bf3856ad364e35_6.0.6000.20586_none_9a971f082118ad55.manifestNot Applicable76,54926-Apr-200715:52Not Applicable
L2sechc.dll6.0.6000.20586124,41626-Apr-200703:04x86
L2sechc.mofNot Applicable2,33425-Apr-200723:10Not Applicable
Nwifi.sys6.0.6000.20586154,62426-Apr-200702:17x86
Gatherwirelessinfo.vbsNot Applicable14,82707-Jan-200705:37Not Applicable
Gatherwirelessinfo.xsltNot Applicable93307-Jan-200705:37Not Applicable
Report.system.wireless.xmlNot Applicable59,62007-Jan-200705:37Not Applicable
Rules.system.wireless.xmlNot Applicable164,68007-Jan-200705:37Not Applicable
Wireless diagnostics.xmlNot Applicable33,99107-Jan-200705:37Not Applicable
Wlan.mofNot Applicable12,87825-Apr-200723:10Not Applicable
Wlan.tmfNot Applicable1,652,41726-Apr-200702:17Not Applicable
Wlanapi.dll6.0.6000.2058647,10426-Apr-200703:06x86
Wlanhlp.dll6.0.6000.2058667,58426-Apr-200703:06x86
Wlanmsm.dll6.0.6000.20586289,28026-Apr-200703:06x86
Wlansec.dll6.0.6000.20586299,00826-Apr-200703:06x86
Wlansvc.dll6.0.6000.20586502,78426-Apr-200703:06x86
Windows Vista, 64-bit versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Amd64_72c063ca0c55c6f79ef3c07ae4cbcd68_31bf3856ad364e35_6.0.6000.20586_none_36e7ff88812e09dd.manifestNot Applicable70426-Apr-200715:48Not Applicable
Amd64_a742c1c1d114bf15e9260daa3f2d5e43_31bf3856ad364e35_6.0.6000.20586_none_bd8544d0e0a30c8c.manifestNot Applicable1,04026-Apr-200715:48Not Applicable
Amd64_fdcd824ad1103e26237f3ed00da841aa_31bf3856ad364e35_6.0.6000.20586_none_f8666685f5d17ae8.manifestNot Applicable1,07426-Apr-200715:48Not Applicable
Amd64_microsoft-windows-l..securityhelperclass_31bf3856ad364e35_6.0.6000.20586_none_e08a5d304d6b3fc6.manifestNot Applicable17,00426-Apr-200715:55Not Applicable
Amd64_microsoft-windows-native-80211_31bf3856ad364e35_6.0.6000.20586_none_a97a214963828393.manifestNot Applicable5,49426-Apr-200715:55Not Applicable
Amd64_microsoft-windows-wlansvc_31bf3856ad364e35_6.0.6000.20586_none_f6b5ba8bd9761e8b.manifestNot Applicable76,62126-Apr-200715:55Not Applicable
Package_1_for_kb935222~31bf3856ad364e35~amd64~~6.0.1.0.mumNot Applicable2,65826-Apr-200715:48Not Applicable
Package_2_for_kb935222~31bf3856ad364e35~amd64~~6.0.1.0.mumNot Applicable2,03726-Apr-200715:48Not Applicable
Update.mumNot Applicable1,89726-Apr-200715:48Not Applicable
Wow64_microsoft-windows-wlansvc_31bf3856ad364e35_6.0.6000.20586_none_010a64de0dd6e086.manifestNot Applicable65,30426-Apr-200715:55Not Applicable
X86_microsoft-windows-l..securityhelperclass_31bf3856ad364e35_6.0.6000.20586_none_846bc1ac950dce90.manifestNot Applicable16,97226-Apr-200715:55Not Applicable
L2sechc.dll6.0.6000.20586155,64826-Apr-200704:15x64
L2sechc.mofNot Applicable2,33425-Apr-200723:11Not Applicable
Nwifi.sys6.0.6000.20586189,95226-Apr-200702:45x64
Gatherwirelessinfo.vbsNot Applicable14,82707-Jan-200705:38Not Applicable
Gatherwirelessinfo.xsltNot Applicable93307-Jan-200705:38Not Applicable
Report.system.wireless.xmlNot Applicable59,62007-Jan-200705:38Not Applicable
Rules.system.wireless.xmlNot Applicable164,68007-Jan-200705:38Not Applicable
Wireless diagnostics.xmlNot Applicable33,99107-Jan-200705:38Not Applicable
Wlan.mofNot Applicable12,87825-Apr-200723:11Not Applicable
Wlan.tmfNot Applicable1,720,52426-Apr-200702:45Not Applicable
Wlanapi.dll6.0.6000.2058662,97626-Apr-200704:17x64
Wlanhlp.dll6.0.6000.2058697,79226-Apr-200704:17x64
Wlanmsm.dll6.0.6000.20586348,16026-Apr-200704:17x64
Wlansec.dll6.0.6000.20586373,24826-Apr-200704:17x64
Wlansvc.dll6.0.6000.20586603,64826-Apr-200704:17x64
Wlan.mofNot Applicable12,87825-Apr-200723:10Not Applicable
Wlanapi.dll6.0.6000.2058647,10426-Apr-200703:06x86
Wlanhlp.dll6.0.6000.2058667,58426-Apr-200703:06x86
Wlanmsm.dll6.0.6000.20586289,28026-Apr-200703:06x86
Wlansec.dll6.0.6000.20586299,00826-Apr-200703:06x86
L2sechc.dll6.0.6000.20586124,41626-Apr-200703:04x86
L2sechc.mofNot Applicable2,33425-Apr-200723:10Not Applicable

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Vista Service Pack 1.

MORE INFORMATION

For more information, click the following article number to view the article in the Microsoft Knowledge Base:
824684  (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates

APPLIES TO
  • Windows Vista Ultimate
  • Windows Vista Home Premium
  • Windows Vista Home Basic
  • Windows Vista Enterprise
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Enterprise 64-bit Edition
Keywords: 
kbautohotfix kbvistasp1fix kbwinvistapostrtmfix kbexpertiseinter kbexpertisebeginner kbbug kbfix kbHotfixServer kbqfe KB935222
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