Fix for The RDP Protocol Component “DATA ENCRYPTION” Detected an Error in 2003/XP/2000
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when you use Remote Desktop Connection on a Windows 2003/XP/2000 Professional computer to connect to a Terminal Services server.You may receive the following error
The RDP protocol component “DATA ENCRYPTION” detected an error in the protocol stream and has disconnected the client.
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.
Click start—>Run type regedit click ok
Locate and then click the following registry subkey
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\TermService\Parameters
Under this registry subkey, delete the following values
• Certificate
• X509 Certificate
• X509 Certificate ID
Quit Registry Editor, and then restart the server.
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Thank you so much. I searched for 4 days before finding this, and it worked. My issue arose when I found spyware infected files in roaming profiles on a client’s Server 2003 machine. After cleaning the spyware (OnlineGaming) the RDP failed. I thought that the spyware may have messed up the encryption for RDP, but not so. This fix worked. Thanks.