Heartbeat Wait Time

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We have 3 Hosts in HA and heartbeat is present between them via network as well as through HA Heartbeat using 2 datastores.
We have a physical network switch in the rack that needs to turned off for a brief period for an adapter change. It will be turned off for say 5 minutes.

Is there a chance this would cause any issues with the VMs ? I understand that during the switch power off internet will not be available and the services will be out of reach.
But will it auto resume once its powered back on ? Any chance that it will cause the Hosts to try HA and try to reboot the VMs? How long will it wait for HA Heartbeat?

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