How can a client avoid being affected by a Domino server hang?

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When a Domino server hangs, or is unresponsive to a client request, the Lotus Notes client may not fail over to another server in the cluster. The client will also appear hung with a "lightening bar" in the lower left corner of the screen. This can happen when the Domino server is accepting TCPIP requests from clients but is unable to process the request. If the Domino server system responds to the client request, the client will NOT attempt failover to the Domino Cluster server.