How to collect events from VMware ESX and ESXi events


I'd gone through the steps for 

InTrust 11.4.1 - Preparing for Auditing VMware vCenter and ESX or ESXi

but the job return with error:

Failed to collect event log. ADC Error: Cannot connect to specified event log. (uncaught exception:Error:Name:Native:virtualiztion server is: hostname. Description:The underlying connection was closed.