Microsoft KB Archive/197863

= WLBS Cluster Servers Show Multiple Default Hosts =

Article ID: 197863

Article Last Modified on 10/31/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Server 4.0 Enterprise Edition
 * Microsoft Windows NT Load Balancing Service

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This article was previously published under Q197863



SYMPTOMS
After you start the cluster hosts, the hosts report that convergence has completed, but more than one host is a default.



CAUSE
Probably causes are as follows:


 * 1) The cluster hosts have become subnetted so that all hosts are not reachable on the same network.
 * 2) Different network addresses are being used across the cluster, and the cluster's primary IP address was not entered into the TCP/IP configuration for the Windows NT Load Balancing Service (WLBS) Virtual NIC.
 * 3) Different clusters are running on the same subnet.



RESOLUTION
To resolve these issues, use the corresponding resolutions below:


 * 1) Be sure that all cluster hosts can communicate with each other.
 * 2) In the case of different network addresses being used, TCP/IP will not detect an address conflict, and multiple clusters will exist. Be sure to use one cluster primary IP address and a corresponding network address on all hosts within the same cluster, and be sure to enter the primary IP address in the TCP/IP configuration for the WLBS Virtual NIC.
 * 3) If you use different primary IP addresses, each with unique corresponding network addresses, on various cluster hosts, you can create multiple clusters on the same subnet. This is a not a problem unless this behavior was not intended.

Additional query words: Convoy

Keywords: kbprb KB197863

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