Steps to reproduce:

1. Added VMware vCenter over Zabbix Wizard using default included template
2. After discovery, its created an VMware hypervisor discovery: PS-H-VS1.prostudio.sk
3. and then I get 

   PS-H-VS1.prostudio.sk

   VMware Hypervisor: Hypervisor is down

1. The Hypervisor is running, can be ping from teh Zabbix server and teh Rabbis is also running on it.

Result:
I have added the screen shots.
I doesnt have found any event marked as ICMP or FQDN of the hypervisor even I use Debug level 4
Expected:
I should see that the Hypervisor is up.