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RDP 8.1 client for Windows 7 or Windows Server 2008 R2 disconnects when it is connected through a RD gateway

Symptoms
Consider the following scenario:
  • You have a computer that is running Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 SP1.
  • You connect the computer to a remote desktop by using Remote Desktop Protocol (RDP) 8.1 through a Remote Desktop Gateway (RD Gateway) server over User Datagram Protocol (UDP).
In this scenario, the remote desktop session constantly disconnects and reconnects.

Resolution
To resolve this issue, use one of the following methods to obtain and install the update. Notice that this update has prerequisites.

Method 1: Windows Update

This update is available from Windows Update.

Method 2: Microsoft Download Center

The following files are also available for download from the Microsoft Download Center:
Operating systemUpdate
All supported x86-based versions of Windows 7DownloadDownload the package now.
All supported x64-based versions of Windows 7DownloadDownload the package now.
All supported x64-based versions of Windows Server 2008 R2DownloadDownload the package now.
For more information about how to download Microsoft support files, click 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 apply this update, you must be running Windows 7 SP1 or Windows Server 2008 R2 SP1 that has update 2830477 installed.
For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To apply this update, you do not 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 does not replace a previously released update.
Status
Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.
More information

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.

For all supported x86-based versions of Windows 7
File nameFile versionFile sizeDateTimePlatform
Mstscax.dll6.3.9600.172765,703,16805-Sep-201401:52x86
Mstscax.mofNot applicable2,05526-Nov-201322:49Not applicable
Rdvidcrl.dll6.3.9600.16415855,55209-Jan-201402:22x86
Tsgqec.dll6.3.9600.1641553,24809-Jan-201402:22x86
Mstscax.dll6.3.9600.172765,703,16805-Sep-201401:49x86
Mstscax.mofNot applicable2,05526-Nov-201322:44Not applicable
Rdvidcrl.dll6.3.9600.16415855,55209-Jan-201402:31x86
Tsgqec.dll6.3.9600.1641553,24809-Jan-201402:31x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Mstscax.dll6.3.9600.172766,584,32005-Sep-201402:11x64
Mstscax.mofNot applicable2,05526-Nov-201322:49Not applicable
Rdvidcrl.dll6.3.9600.164151,057,28026-Nov-201322:49x64
Tsgqec.dll6.3.9600.1641562,97626-Nov-201322:49x64
Mstscax.dll6.3.9600.172766,584,32005-Sep-201402:12x64
Mstscax.mofNot applicable2,05526-Nov-201322:49Not applicable
Rdvidcrl.dll6.3.9600.164151,057,28026-Nov-201322:49x64
Tsgqec.dll6.3.9600.1641562,97626-Nov-201322:49x64
Mstscax.dll6.3.9600.172765,703,16805-Sep-201401:52x86
Mstscax.mofNot applicable2,05526-Nov-201322:49Not applicable
Rdvidcrl.dll6.3.9600.16415855,55209-Jan-201402:22x86
Tsgqec.dll6.3.9600.1641553,24809-Jan-201402:22x86
Mstscax.dll6.3.9600.172765,703,16805-Sep-201401:49x86
Mstscax.mofNot applicable2,05526-Nov-201322:44Not applicable
Rdvidcrl.dll6.3.9600.16415855,55209-Jan-201402:31x86
Tsgqec.dll6.3.9600.1641553,24809-Jan-201402:31x86

For more information about the RD Gateway, go to the following Microsoft website:For more information about a similar issue, see RDP session is unstable when it uses UDP in Windows 8.1 or Windows Server 2012 R2.
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
Properties

Article ID: 2994023 - Last Review: 11/18/2014 06:31:00 - Revision: 3.0

Windows Server 2008 R2 Service Pack 1, Windows 7 Service Pack 1

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