Article ID: 323497 - View products that this article applies to.
This article was previously published under Q323497
After you install Windows 2000 Security Rollup Package 1 (SRP1), Terminal Services clients may not be able to connect to the Terminal Services server. You may also experience this problem when you use Remote Desktop Web Connection on a Windows XP Professional computer to connect to a Terminal Services server. When this problem occurs, event ID 50 is recorded in the system event log:
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
Event Type: Error
Event Source: TermDD
Event ID: 50
The RDP protocol component "DATA ENCRYPTION" detected an error in the protocol stream and has disconnected the client.
307454The Terminal Services client may also receive the following error message during a connection attempt:
(http://support.microsoft.com/kb/307454/ )MS01-052: Invalid RDP data can cause Terminal Services failure
The terminal Server has ended the connection.
A potential race condition between the Icaapi.dll and Rdpwsx.dll dynamic-link libraries (DLLs) may cause the private certificate key on the Terminal Services server not to be synchronized.
To have us fix this problem for you, go to the "Fix it for me" section. If you prefer to fix this problem yourself, go to the "Let me fix it myself" section.
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To fix this problem automatically, click the Fix it button or link. In the File Download dialog box, click Run, and then follow the steps in the Fix it Wizard.
Fix this problem
Microsoft Fix it 50643
Then, go to the "Did this fix the problem?" section.
Let me fix it myselfImportant This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/322756/ )How to back up and restore the registry in Windows
To resolve this issue, follow these steps:
Did this fix the problem?
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 323497 - Last Review: March 28, 2011 - Revision: 7.0