"The RDP Protocol Component "DATA ENCRYPTION" Detected an Error..." error message
SYMPTOMS
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: Event Type: Error
Event Source: TermDD
Event ID: 50
Description:
The RDP protocol component "DATA ENCRYPTION" detected an error in the protocol stream and has disconnected the client.
For additional information, click the following article number to view the article in the Microsoft Knowledge Base: 307454 (MS01-052: Invalid RDP data can cause Terminal Services failure) MS01-052: Invalid RDP data can cause Terminal Services failure
The Terminal Services client may also receive the following error message during a connection attempt: The terminal Server has ended the connection.
http://support.microsoft.com/kb/323497#top
CAUSE
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. http://support.microsoft.com/kb/323497#top
RESOLUTION
Important 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: 322756 (How to back up and restore the registry in Windows) How to back up and restore the registry in Windows
To resolve this issue, follow these steps: 1.Start Registry Editor.2.Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\TermService\Parameters
3.Under this registry subkey, delete the following values: •Certificate•X509 Certificate•X509 Certificate ID4.Quit Registry Editor, and then restart the server.
This also works for 2003 Server R2 SP2
SYMPTOMS
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: Event Type: Error
Event Source: TermDD
Event ID: 50
Description:
The RDP protocol component "DATA ENCRYPTION" detected an error in the protocol stream and has disconnected the client.
For additional information, click the following article number to view the article in the Microsoft Knowledge Base: 307454 (MS01-052: Invalid RDP data can cause Terminal Services failure) MS01-052: Invalid RDP data can cause Terminal Services failure
The Terminal Services client may also receive the following error message during a connection attempt: The terminal Server has ended the connection.
http://support.microsoft.com/kb/323497#top
CAUSE
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. http://support.microsoft.com/kb/323497#top
RESOLUTION
Important 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: 322756 (How to back up and restore the registry in Windows) How to back up and restore the registry in Windows
To resolve this issue, follow these steps: 1.Start Registry Editor.2.Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\TermService\Parameters
3.Under this registry subkey, delete the following values: •Certificate•X509 Certificate•X509 Certificate ID4.Quit Registry Editor, and then restart the server.
This also works for 2003 Server R2 SP2
