Microsoft KB Archive/196485

= Computer Loses Network Connectivity =

Article ID: 196485

Article Last Modified on 10/31/2006

-

APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Workstation 4.0 Developer Edition

-



This article was previously published under Q196485



SYMPTOMS
Computers running Windows NT Server or Windows NT Workstation may lose network connectivity. The computer is fully operational from the console, but it cannot make network connections, be PINGed, or accessed across the network.

This behavior has been exhibited when Network Monitor is started from the console or if Network Monitor is capturing the traffic in or out of this computer from another computer.



CAUSE
This problem has been experienced on computers with IBM token ring network adapters using the driver with the following date and time stamp:

  Ibmtrp.sys   Tue May 21 15:31:12 1996

This problem happens when the Microsoft Network Monitor driver, Bhnt.sys, attempts to place the token ring card in promiscuous mode.

The same behavior would occur when Performance Monitor is started locally or when another computer remotely selects this computer as target.



RESOLUTION
Contact IBM for the latest version of Ibmtrp.sys.



MORE INFORMATION
Both Network Monitor and Performance Monitor load Bhnt.sys when they are started.

The third-party products discussed here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words: hang ping connectivity

Keywords: kbprb KB196485

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.