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This article was previously published under Q238219
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The default status of NLB hosts is to converge with themselves. When you connect the NLB hosts to a hub, all the hosts are converged together and the host that displays Default is the host with the highest priority ID.
The capability to pass broadcasts is disabled on the layer 2 switch to which the NLB hosts are connected. The heartbeat packets are not seen by other hosts and all hosts converge only with themselves.
To allow all NLB host to converge together, use one of the following methods:
(http://support.microsoft.com/kb/193602/EN-US/ )Configuration Options for WLBS Hosts Connected to Layer 2 Switch
(http://support.microsoft.com/kb/232711/EN-US/ )How Cluster Integrity Is Monitored in WLBS