I'm facing a strange HA issue.
Essential plus kit (2 hosts, virtual vcenter), DAS storage. Vsphere 5.1 lastest patches. 1 datacenter, 1 cluster inside with 2 hosts.
While trying to enable HA (with default settings) an election takes place resulting in a master and a timeout error for the second host. Funny thing is that if I force a new election manually on both hosts the first I click becomes master, second showing timeout error later on.
Both machines are able to ping each other on both vmotion subnet and management network subnet.
I did triple check connections & VLAN setting on the physical switch -> no further success
I did change vswitch assignement & design in at least 4 different ways -> no further success
I did break the cluster and the datacenter, recreate new ones -> same issue.
I took both of my hosts (1 at a time) out of the vCenter and back in -> no further success
I did NOT recreate my vCenter (at least not yet...)
I did NOT reinstall any of my hosts from scratch (at least not yet...)
Any constructive ideas?