Hello @ frankb,
I installed it manually with interactive questions. I got Failed at the end of the installation steps. I have the agent config file (below), but I got also "Cannot establish communication : 500 Internal Server Error" from the log file agent. When I try to curl an OCS inventory server I can't open the page on the console. And the same time Windows agent can connect with OCS Server.I trayed to make sets from your links, but still the same issue.