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Q181513: XCON: MTA DRAS Connection Terminates With 1294 and 9316 Events

Article: Q181513
Product(s): Microsoft Exchange
Version(s): winnt:5.5
Operating System(s): 
Keyword(s): 
Last Modified: 01-APR-1999

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The information in this article applies to:

- Microsoft Exchange Server, version 5.5 
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SYMPTOMS
========

The Microsoft Exchange Server 5.5 message transfer agent (MTA) may fail to
maintain a connection over a DRAS connection. Events similar to the following
may appear in the Application event log:

  Event: 1294
  Source: MTA
  An association with entity
  /O=MICROSOFT/OU=THEFORCE/CN=CONFIGURATION/CN=CONNECTIONS/CN=DAGOBAH TO
  PLEASUREDOME ended abnormally. [4 1 0 0 PLATFORM KERNEL 16 130] (10)

  Event: 9316
  Source: MTA
  An RPC communications error occurred. No data was sent over the RPC
  connection. Locality table (LTAB) index: 4. Windows NT error: 1783. The
  MTA will attempt to recover the RPC connection. [BASE IL PIPE RAS 24
  230] (12)

CAUSE
=====

The Windows NT error 1783 in Event 9316 equates to "Bad Stub Data." This problem
occurs when the number of messages in the outbound DRAS connector's queue
exceeds the DRAS connector's configured threshold. By default, the Threshold
value is set to 50. When the queue exceeds this threshold, an additional
association is generated. However, the sending MTA passes an invalid context
handle to the receiving MTA, which terminates the connection because the handle
is invalid.

STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.5. This problem has been corrected in the latest U.S. Service Pack for
Microsoft Exchange Server version 5.5. For information on obtaining the Service
Pack, query on the following word in the Microsoft Knowledge Base (without the
spaces):

  S E R V P A C K

======================================================================
Keywords          :  
Technology        : kbExchangeSearch kbExchange550 kbZNotKeyword2
Version           : winnt:5.5
Issue type        : kbbug
Solution Type     : kbfix

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