KB2798286: RemoteApp disconnects from a client running Windows 7 or Windows Server 2008 R2

A new KB article (KB2798286) was released today related to Remote Apps being disconnected with a protocol error when the Remote App supports Remote Applications Integrated Locally (RAIL). It seems like a similar update as KB2696020 http://support.microsoft.com/kb/2696020/en-us?sd=rss&spid=14134. Only this time the fix is also applicable for Windows 7.

“…Consider the following scenario:

• You install the Remote Desktop Session Host role service on a computer that is running Windows Server 2008 R2.
• You publish a RemoteApp application that supports the Remote Applications Integrated Locally (RAIL) feature on the computer.
• You use the Remote Desktop Web Access (RD Web Access) service on a client computer that is running Windows 7 or Windows Server 2008 R2 to access the RemoteApp application.
• You open the RemoteApp application and perform several operations.

In this scenario, the Remote Desktop session disconnects. Additionally, you receive an error message that resembles the following:

Because of a protocol error, this session will be disconnected. Please try connecting to the remote computer again..”

Source and download: http://support.microsoft.com/kb/2798286/en-us?sd=rss&spid=14134

RemoteApp session is disconnected when the RDP encryption level is set to Low and RDP compression is disabled in Windows Server 2008 R2

Today a new KB article and hotfix have been released for RDS on Windows Server 2008 R2. In a specific scenario a RemoteApp session could disconnected and additionally, the following error message is raised: "Because of a protocol error this session will be disconnected. Please try connecting to the remote computer again"

Article ID: 2699817 - Last Review: May 9, 2012 - Revision: 1.0
RemoteApp session is disconnected when the RDP encryption level is set to Low and RDP compression is disabled in Windows Server 2008 R2

"...Consider the following scenario:

• You install the Remote Desktop Session Host role service on a computer that is running Windows Server 2008 R2.
• You configure the Remote Desktop Protocol (RDP) encryption level to Low, and then you disable RDP compression.
• You publish a RemoteApp program on the computer.
• You connect to the RemoteApp program from a client computer.

In this scenario, the RemoteApp session is disconnected intermittently. Additionally, you receive the following error message:

Because of a protocol error this session will be disconnected. Please try connecting to the remote computer again.

 

This issue occurs because an incomplete window instruction is sent to the client computer..."

 

Source and download: http://support.microsoft.com/kb/2699817/en-us?sd=rss&spid=14134