Routing and Remote Access "Out of Buffers" Event Logs

ID: Q172290

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

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

Keywords : kberrmsg kbnetwork NT4SP4Fix kbbug4.00 ntnetserv kbfix4.00.sp4 ntrouter NTSrv
Version : WinNT:4.0
Platform : winnt
Issue type : kbbug