All questions related to installations, configurations and maintenance of Advanced Host Monitor (including additional tools such as RMA for Windows, RMA Manager, Web Servie, RCC).
Not sure I understand the question.
You need to open 1 TCP port on firewall in RMA -> HostMonitor direction (or better open 2 TCP ports: 1 for RMA->HostMonitor connection, another for RMA->RMAManager communication). RMA keeps this connection open all the time.
This was asked of me. I'm not sure I understand the question either. I'm familiar with sync/async comms in serial environments, but I've never been asked this re: TCP/IP.