Microsoft KB Archive/275573

= Windows 2000 Does Not Recognize IBM 10/100 NetFinity Fault Tolerant Network Adapter After Upgrade =

Article ID: 275573

Article Last Modified on 10/31/2006

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Advanced Server

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This article was previously published under Q275573



IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry



SYMPTOMS
When you upgrade from Microsoft Windows NT 4.0 to Microsoft Windows 2000 on an IBM NetFinity server, the IBM NetFinity 10/100 NetFinity Fault Tolerant network adapter may not function properly, and may display a &quot;Code 28&quot; error status code in Device Manager.



CAUSE
This behavior can occur when the IBM DMI service layer is installed under Windows NT 4.0.



RESOLUTION
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To resolve this issue, follow these steps:  Use Regedt32.exe to delete the following key in the registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PCNet

 Restart your computer.

When your computer restarts, Windows 2000 reinstalls the driver, and the service.



MORE INFORMATION
This information can be found at the IBM Support Web site from the following tip:

RETAIN tip H171450

Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

Keywords: kbenv kbhardware kbnetwork kbprb kbsetup KB275573

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