Licensing servers become deadlocked under high load in Windows Server 2012 R2

This article describes an issue that typically occurs in a Remote Desktop License server that is running Windows Server 2012 R2 when there are multiple license servers in the deployment and during high load. Before you install this update, see the Prerequisites section.
Symptoms
When this issue occurs, clients can't connect to Remote Desktop Services (RDS) servers until the license services are restarted.
How to get this update
Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Method 1: Windows Update

This update is provided as a Recommended update on Windows Update. For more information on how to run Windows Update, see How to get an update through Windows Update.

Method 2: Microsoft Download Center

The following files are available for download from the Microsoft Download Center:
Operating systemUpdate
All supported x64-based versions of Windows Server 2012 R2DownloadDownload the package now.
For more information about how to download Microsoft support files, select the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
Update detail information

Prerequisites

To install this update, you should first install April 2014, update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) in Windows Server 2012 R2.

Registry information

To apply this update, you don't have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this update.

Update replacement information

This update doesn't replace a previously released update.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology that Microsoft uses to describe software updates.
File Information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows Server 2012 R2

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 0.17 xxxWindows Server 2012 R2RTMGDR
    6.3.960 0.18 xxxWindows Server 2012 R2RTMGDR
  • 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 in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very 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.
x64 Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform
Lserver.dll6.3.9600.18226750,08002-Feb-201617:23x64
Tlsrepplugin.dll6.3.9600.17415100,35229-Oct-201402:02x64
Tlsunattend.exe6.3.9600.1741510,75229-Oct-201402:42x64
Tslicensing.events.xmlNot applicable54918-Jun-201314:47Not applicable

Additional file information

x64 Windows Server 2012 R2
File propertyValue
File nameAmd64_6aaa21b677b0ca39a3e1cb8ed3e87302_31bf3856ad364e35_6.3.9600.18226_none_cc5fd05d19b53fb2.manifest
File versionNot applicable
File size722
Date (UTC)02-Feb-2016
Time (UTC)22:31
PlatformNot applicable
File nameAmd64_microsoft-windows-t..vices-licenseserver_31bf3856ad364e35_6.3.9600.18226_none_9248f17e724d045e.manifest
File versionNot applicable
File size95,247
Date (UTC)02-Feb-2016
Time (UTC)22:31
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size1,595
Date (UTC)02-Feb-2016
Time (UTC)22:31
PlatformNot applicable
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.
Properties

Article ID: 3108326 - Last Review: 04/12/2016 20:04:00 - Revision: 2.0

Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation

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