vCenter UI presents the following error message:
Cannot find vSphere HA master agent
vSphere HA agent for this host has an error: The vSphere HA agent is not reachable from vCenter Server
VMware vCenter Server
esxcli software vib remove -n vmware-fdm
/etc/vmware-vpx/docRoot/vSphere-HA-depot/vib20/vmware-fdm/VMware_bootbank_vmware-fdm
esxcli software vib install -f -v /tmp/VMware_bootbank_vmware-fdm
curl -v telnet://<ESXi host IP>:443
curl -v telnet://<ESXi host IP>:902
vmkping -I <management vmk, usually vmk0> <affected host IP>
Impact/Risks: