This event records that the isolation address could not be pinged. The default isolation address is the service console default gateway.
The host is running, but it can not communicate with other hosts in the cluster. It also failed to ping its isolation addresses.
- Check if you are able to ping ip address stated at "das.isolationaddress" within the HA advanced options
- If "das.isolationaddress" is empty, ping default gateway for your host.
- If you're unable to ping neither of IP addresses, check if the Service Console default gateway on that host show up correctly in the VI client.
- Check in the Networking section of the Configuration tab for the host.
Also ensure that your network infrastructure is sufficiently redundant and that at least one network path is available at all times, host network isolation should be a rare occurrence.
Refer to the VMware Online Documentation for more information.