All hosts were isolated from the network in a HA cluster.


There is an issue with network redundancy configuration in the management network.


Check the network configuration for proper network redundancy in the management network.


By default, the isolated host powers off its virtual machines. These virtual machines can then successfully fail over to other hosts in the cluster.

Refer to this VMware article for more information about Service Console redundancy for VMware High Availability. See the vSphere Availability Guide for more information.


Refer to the VMware Online Documentation for more information.

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