When trying to vMotion or adding vds to esxi hosts cluster via vcenter server appliance web I am unable to find the hosts in the hosts list. HA DRS clueter has already been created successfully but I can see that proactive HA remains disabled. EVC has not been enables on both hosts as both hosts are with same processor and specs too.
I am using vCenter Server Appliance 6.5 and ESXi 6.5
Can you tell us which is your vSphere license?
What is the status of Hosts in summary. Can you check the status of services on hosts. If require, restart management agent on host.