An incorrect X.224 protocol error message is logged (312313)

The information in this article applies to:

Microsoft Windows 2000 Server SP1
Microsoft Windows 2000 Server SP2
Microsoft Windows 2000 Advanced Server SP1
Microsoft Windows 2000 Advanced Server SP2
Microsoft Windows 2000 Professional SP1
Microsoft Windows 2000 Professional SP2

This article was previously published under Q312313

SYMPTOMS

Terminal Services error code 50 may be logged in the event log, even if no client sessions have been disconnected. The following entry may be recorded:

Terminal server event ID 50
The RDP protocol component X.224 detected an error in the protocol stream and has disconnected the client.

The binary part of the message contains the number 0x00000009 at offset 0x28.

CAUSE

This error may be logged for clients that disconnected their session correctly. If this is the case, you can safely ignore this error message.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to obtain the latest Windows 2000 Service Pack

The English version of this fix should have the following file attributes or later:

   Date         Time   Version        Size     File name
   --------------------------------------------------------
   14-Nov-2001  00:30  5.0.2195.4633  129,296  Instrdp5.dll
   14-Nov-2001  00:31  5.0.2195.4633  111,464  Rdpwd.sys

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Windows 2000 Service Pack 3 (SP3).

Modification Type:	Minor	Last Reviewed:	9/26/2005
Keywords:	kbHotfixServer kbQFE kbWin2000sp3fix kbWin2000PreSP3Fix kbbug kbfix kbQFE KB312313