There are 3 servers: HostMonitorServer (Server 1), HostMonitorAgent (Server 2) and Target host (Server 3)
We need to monitor service status on Server 3.
For this the following test was created:

When trying to get list of services we get the following error:

What do we need to get an access to services of Server3?
What ports must be opened on servers?
What services must be started?
Agent is installed on Server2 under local user with administrator privileges.
Thank you in advance.
P.S Version of HostMonitor 8.73