FIX: PMK caching works incorrectly when you roam on a Wi-Fi network in Windows Embedded Compact 7

View products that this article applies to.

This article describes an issue that occurs when you roam on a Wi-Fi network on a Windows Embedded Compact 7-based device. Before you install the update, all previously issued updates for this product must be installed.

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Symptoms

When the fast roaming associates to a second access point and then goes back to the first access point, the pairwise master key (PMK) caching is not used.

Note Before you install the fix, PMK caching in Windows Embedded Compact 7 does not work in roaming.

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Resolution

Download information

The Windows Embedded Compact 7 Monthly Update (December 2014) is now available from Microsoft. To download this Windows Embedded Compact 7 monthly update, go to the following Microsoft Download Center website:

Windows Embedded Compact 7 updates

The kind of processor that each file applies to is visible in the name of each file in the "File information" section.

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More Information

Restart requirement

After you apply this update, you must perform a clean build of the whole platform. To do this, use one of the following methods:

On the Build menu, click Clean Solution, and then click Build Solution.
On the Build menu, click Rebuild Solution.

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

Update replacement information

This update does not replace any other updates.

File information

The English version of this software update package 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.

Files that are included in this hotfix package

File name	File size	Date	Time	Path
Wlansec.dll	172,032	08-Dec-2014	12:45	Public\Servers\Oak\Target\X86\Retail
Wlansec.dll	516,096	08-Dec-2014	12:42	Public\Servers\Oak\Target\X86\Debug
Wlansec.dll	368,640	08-Dec-2014	12:43	Public\Servers\Oak\Target\X86\Checked
Wlansec.dll	184,320	08-Dec-2014	12:45	Public\Servers\Oak\Target\Armv5\Retail
Wlansec.dll	643,072	08-Dec-2014	12:44	Public\Servers\Oak\Target\Armv5\Debug
Wlansec.dll	409,600	08-Dec-2014	12:45	Public\Servers\Oak\Target\Armv5\Checked
Wlansec.dll	184,320	08-Dec-2014	12:45	Public\Servers\Oak\Target\Armv6\Retail
Wlansec.dll	638,976	08-Dec-2014	12:44	Public\Servers\Oak\Target\Armv6\Debug
Wlansec.dll	409,600	08-Dec-2014	12:45	Public\Servers\Oak\Target\Armv6\Checked
Wlansec.dll	180,224	08-Dec-2014	12:46	Public\Servers\Oak\Target\Armv7\Retail
Wlansec.dll	638,976	08-Dec-2014	12:44	Public\Servers\Oak\Target\Armv7\Debug
Wlansec.dll	405,504	08-Dec-2014	12:45	Public\Servers\Oak\Target\Armv7\Checked
Wlansec.dll	237,568	08-Dec-2014	12:46	Public\Servers\Oak\Target\Mipsii\Retail
Wlansec.dll	753,664	08-Dec-2014	12:43	Public\Servers\Oak\Target\Mipsii\Debug
Wlansec.dll	516,096	08-Dec-2014	12:44	Public\Servers\Oak\Target\Mipsii\Checked
Wlansec.dll	237,568	08-Dec-2014	12:44	Public\Servers\Oak\Target\Mipsii_fp\Retail
Wlansec.dll	753,664	08-Dec-2014	12:43	Public\Servers\Oak\Target\Mipsii_fp\Debug
Wlansec.dll	516,096	08-Dec-2014	12:45	Public\Servers\Oak\Target\Mipsii_fp\Checked
Wlansec.dll	172,032	08-Dec-2014	12:44	Public\Servers\Oak\Target\Sh4\Retail
Wlansec.dll	524,288	08-Dec-2014	12:48	Public\Servers\Oak\Target\Sh4\Debug
Wlansec.dll	385,024	08-Dec-2014	12:45	Public\Servers\Oak\Target\Sh4\Checked