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Q136858: COM Port failures with Digiboard mc/XEM

Article: Q136858
Product(s): Microsoft Windows NT
Version(s): 
Operating System(s): 
Keyword(s): 
Last Modified: 08-AUG-2001

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The information in this article applies to:

- Microsoft Windows NT Workstation version 3.51 
- Microsoft Windows NT Server version 3.51 
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SYMPTOMS
========

When you use a Digiboard XEM/mc multiport serial board for dial in access to a
network on an NCR 3430 running with Windows NT Server RAS Server, some ports
drop the RTS line and fail to respond to incoming dial-up connections after
approximately 3000 connections.

CAUSE
=====

The cause of this problem is currently under investigation. It seems to be
configuration specific to the NCR 3430 Microchannel architecture and the
Digiboard mc/XEM board.

WORKAROUND
==========

To work around this problem, stop and restart the RAS service to reset the
ports. You will need to do this every 3000 connections.

STATUS
======

Microsoft has confirmed this to be a problem Windows NT version 3.51. We are
researching this problem and will post new information in the Microsoft
Knowledge Base as it becomes available.

The third-party product discussed here is manufactured by a vendor independent of
Microsoft; we make no warranty, implied or otherwise, regarding this product's
performance or reliability.


Additional query words: prodnt 3.51

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Keywords          :  
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNT351search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS351 kbWinNTS351search

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