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Credentials for an 802.1X EAP wireless connection are lost after Windows RT 8.1 OOBE

View products that this article applies to.


Consider the following scenario:
  • You start a Windows RT 8.1-based device in the out-of-box experience (OOBE).
  • You use the necessary credentials to connect the device to an 802.1X Extensible Authentication Protocol (EAP) wireless connection.
  • The EAP wireless connection uses per-user credentials authentication.
  • After OOBE finishes, the device restarts.
  • You log on to the device.
In this scenario, the credentials are lost. Therefore, the wireless connection is lost.

Note This issue does not occur if the 802.1X EAP network uses machine credentials.

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This issue occurs because an uninitialized variable causes a registry key to not be read.

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Update information

How to obtain this update

To resolve this issue, install update rollup 2903939. For more information about how to obtain this update rollup package, click the following article number to go to the article in the Microsoft Knowledge Base:  
2903939 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 update rollup: December 2013


To apply this update, you must be running Windows RT 8.1.

Registry information

To apply this update, you do not have to make any changes to the registry.

Restart requirement

You do not have to restart the computer after you apply this update.

Update replacement information

This update does not replace a previously released update.
File information

The global version of this update 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 RT 8.1 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:
    VersionProductMilestoneService branch
    6.3.960 0.16 xxxWindows RT 8.1RTMGDR
  • 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 RT 8.1" 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 Windows RT 8.1
File nameFile versionFile sizeDateTimePlatform
Credentialmigrationhandler.dll6.3.9600.1644326,62424-Oct-201308:32Not applicable

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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 RT 8.1

File propertyValue
File nameArm_760774ab0019ae0521f740e228814e2a_31bf3856ad364e35_6.3.9600.16443_none_75cd644e5257d6ee.manifest
File versionNot applicable
File size714
Date (UTC)24-Oct-2013
Time (UTC)23:33
SHA-1 hashNot applicable
MD5 hashNot applicable
File nameArm_microsoft-windows-c..ialmigrationhandler_31bf3856ad364e35_6.3.9600.16443_none_08c30eee126372e1.manifest
File versionNot applicable
File size3,953
Date (UTC)24-Oct-2013
Time (UTC)12:00
SHA-1 hashNot applicable
MD5 hashNot applicable

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Keywords: kbfix, atdownload, kbexpertiseadvanced, kbsurveynew, kb

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Article Info
Article ID : 2903601
Revision : 1
Created on : 1/7/2017
Published on : 12/10/2013
Exists online : False
Views : 85