Hi ExuberantBat52 , this is an internal endpoint configuration env var (which is why it was probably not documented well). It's purpose is to make sure that if the services agent is not configured (which it might be, if you just installed the server and did not bother to set up the services agent yet), it will not continue inflating the logs with connection errors.
This is a special behaviour since in general agents are installed and set up, and if they fail to connect to the server, that's usually an error you'd want to know about. The services agent, being an optional part of the server's installation, might be left unconfigured intentionally 🙂