Windows 7 does not connect to an IEEE 802.1X-authenticated network if an invalid certificate is installed

Symptoms

Consider the following scenario:

  • You have a computer that is running Windows 7.

  • You install valid and invalid certificates for IEEE 802.1X authentication.

    Note An expired certificate is an example of an invalid certificate.

  • You try to connect the computer to an IEEE 802.1X-authenticated network.

In this scenario, the computer does not connect to the network. Additionally, an event that resembles the following is logged in the Applications and Services Logs/Microsoft/Windows/WLAN-AutoConfig/Operational log:

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).

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 file information notes
  • 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:

    Version

    Product

    Milestone

    Service branch

    6.1.760
    0.20xxx

    Windows 7

    RTM

    LDR

    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

Rastls.dll

6.1.7600.20876

372,224

08-Jan-2011

05:34

x86

Rastls.dll

6.1.7601.21637

372,224

08-Jan-2011

05:35

x86

For all supported x64-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Rastls.dll

6.1.7600.20876

423,936

08-Jan-2011

06:17

x64

Rastls.dll

6.1.7601.21637

424,448

08-Jan-2011

06:13

x64

Rastls.dll

6.1.7600.20876

372,224

08-Jan-2011

05:34

x86

Rastls.dll

6.1.7601.21637

372,224

08-Jan-2011

05:35

x86

Workaround

Workaround for Windows 7

To work around this issue, delete the invalid certificate manually.

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

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

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

2,731

Date (UTC)

11-Jan-2011

Time (UTC)

06:52

Platform

Not applicable

File name

X86_02226926fa5bc47820cc6b780d6b8997_31bf3856ad364e35_6.1.7600.20876_none_0b989deb3cc029f5.manifest

File version

Not applicable

File size

694

Date (UTC)

11-Jan-2011

Time (UTC)

06:52

Platform

Not applicable

File name

X86_711b66e97094478623d946a47609db22_31bf3856ad364e35_6.1.7601.21637_none_47f221c5dda7795a.manifest

File version

Not applicable

File size

694

Date (UTC)

11-Jan-2011

Time (UTC)

06:52

Platform

Not applicable

File name

X86_microsoft-windows-rastls_31bf3856ad364e35_6.1.7600.20876_none_6cd0f6aaca8c078a.manifest

File version

Not applicable

File size

4,741

Date (UTC)

08-Jan-2011

Time (UTC)

06:18

Platform

Not applicable

File name

X86_microsoft-windows-rastls_31bf3856ad364e35_6.1.7601.21637_none_6ee393aac7911d09.manifest

File version

Not applicable

File size

4,741

Date (UTC)

08-Jan-2011

Time (UTC)

06:16

Platform

Not applicable

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

File name

Amd64_01fc4b7bfcde273356bea1bbcf47631a_31bf3856ad364e35_6.1.7601.21637_none_25f5c2a5cc8f5522.manifest

File version

Not applicable

File size

1,036

Date (UTC)

11-Jan-2011

Time (UTC)

06:52

Platform

Not applicable

File name

Amd64_21c296e9694f6fb1238087b622c551d2_31bf3856ad364e35_6.1.7600.20876_none_bd640a7316f1abe5.manifest

File version

Not applicable

File size

698

Date (UTC)

11-Jan-2011

Time (UTC)

06:52

Platform

Not applicable

File name

Amd64_223c4f5ad64b6069557c878df1e193a5_31bf3856ad364e35_6.1.7601.21637_none_7140bde66cc7aa96.manifest

File version

Not applicable

File size

698

Date (UTC)

11-Jan-2011

Time (UTC)

06:52

Platform

Not applicable

File name

Amd64_9e10db3889ad4c98cd3c7a59bbabdc67_31bf3856ad364e35_6.1.7600.20876_none_4c0914d343d62fbc.manifest

File version

Not applicable

File size

1,036

Date (UTC)

11-Jan-2011

Time (UTC)

06:52

Platform

Not applicable

File name

Amd64_microsoft-windows-rastls_31bf3856ad364e35_6.1.7600.20876_none_c8ef922e82e978c0.manifest

File version

Not applicable

File size

4,745

Date (UTC)

08-Jan-2011

Time (UTC)

07:10

Platform

Not applicable

File name

Amd64_microsoft-windows-rastls_31bf3856ad364e35_6.1.7601.21637_none_cb022f2e7fee8e3f.manifest

File version

Not applicable

File size

4,745

Date (UTC)

08-Jan-2011

Time (UTC)

07:05

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,751

Date (UTC)

11-Jan-2011

Time (UTC)

06:52

Platform

Not applicable

File name

X86_microsoft-windows-rastls_31bf3856ad364e35_6.1.7600.20876_none_6cd0f6aaca8c078a.manifest

File version

Not applicable

File size

4,741

Date (UTC)

08-Jan-2011

Time (UTC)

06:18

Platform

Not applicable

File name

X86_microsoft-windows-rastls_31bf3856ad364e35_6.1.7601.21637_none_6ee393aac7911d09.manifest

File version

Not applicable

File size

4,741

Date (UTC)

08-Jan-2011

Time (UTC)

06:16

Platform

Not applicable

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