Q172290: Routing and Remote Access "Out of Buffers" Event Logs

Article: Q172290
Product(s): Microsoft Windows NT
Version(s): WinNT:4.0
Operating System(s): 
Keyword(s): kberrmsg kbnetwork kbWinNT400sp4fix
Last Modified: 09-AUG-2001

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The information in this article applies to:

- Microsoft Windows NT Server version 4.0 
- Microsoft Routing and Remote Access Service Update for Windows NT Server version 4.0 
- Microsoft Windows NT Server version 4.0, Terminal Server Edition 
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SYMPTOMS
========

Your Windows NT Routing and Remote Access (RRAS) server may start dropping calls
randomly. The event log on the RRAS server may contain one or more of the
following event log messages:

  Event ID: 20073
  Source: Router
  Description: The following error occurred in the Point to Point Protocol
  module on port COM1. Out of Buffers.

-or-

  Event ID: 20095
  Source: Router
  Description: Cannot receive initial data on port COM1 because of the following
  error: Out of Buffers.

-or-

  Event ID: 20111
  Source: Router
  Description: A Demand Dial connection to the remote interface <name> on
  port COM1 was successfully initiated but failed to complete successfully
  because of the following error: Out of buffers.

Your Remote Access Service (RAS) or Dial-Up Networking (DUN) clients may receive
one or more of the following errors:

  Error 629: The port was disconnected by the remote machine.

-or-

  Error 731: Dial-Up Networking could not negotiate a compatible set of network
  protocols you specified in the Server Type settings. Check your network
  configuration in the Control Panel then try the connection again.

RESOLUTION
==========

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or
Windows NT Server 4.0, Terminal Server Edition. For additional information,
please see the following article in the Microsoft Knowledge Base:

  Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack


STATUS
======

Microsoft has confirmed this to be a problem in Routing and Remote Access Update
for Windows NT Server version 4.0. This problem was corrected in the latest
Routing & Remote Access Service Hotfix Update. You can obtain this update
from Microsoft's World Wide Web Site on the Internet at the following location:

  http://www.microsoft.com/ntserver/commserv/exec/feature/routing.asp

NOTE: Because the Microsoft Web site is constantly updated, the site address may
change without notice. If this occurs, link to the Microsoft home page at the
following address:

  http://www.microsoft.com/

Microsoft has confirmed this to be a problem in Windows NT 4.0 and Windows NT
Server 4.0, Terminal Server Edition. This problem was first corrected in Windows
NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition
Service Pack 4.

Additional query words: 4.00

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Keywords          : kberrmsg kbnetwork kbWinNT400sp4fix 
Technology        : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbNTTermServ400 kbNTTermServSearch kbAudDeveloper kbRRASNTSearch kbRRASNT400
Version           : WinNT:4.0
Issue type        : kbbug
Solution Type     : kbfix

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