Network Load Balancing cluster no longer responds to simple Network Management Protocol requests (280307)

The information in this article applies to:

Microsoft Windows 2000 Server
Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Professional

This article was previously published under Q280307

SYMPTOMS

Under the following conditions, when all hosts in an Network Load Balancing (NLB) cluster are stopped and then started again, the cluster no longer responds to Simple Network Management Protocol (SNMP) requests:

SNMP requests are being sent to the NLB virtual Internet Protocol (IP).
NLB cluster operations on all hosts are stopped to take the cluster off-line, and then started again.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

The English version of this fix should have the following file attributes or later:

   Date         Time   Version        Size    File name
   ----------------------------------------------------
   24-Oct-2000  17:21  5.0.2195.2553  65,040  Wlbs.sys

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows 2000 Service Pack 2.

MORE INFORMATION

For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the following article number to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 hotfixes

Modification Type:	Major	Last Reviewed:	11/5/2004
Keywords:	kbbug kbenv kbfix kbnetwork kbWin2000PreSP2Fix KB280307