Quoting Jens on this: “Eventing mode” and “Polling mode” are the two possible ways of relying on “.NET Remoting” to transfer information between client & Server. Based on my working experience, I’d always recommend to work with “Eventing” in any production environment: “polling” is just a quick workaround (implemented in .NET Remoting) to make sure the connection is still possible, even when the ideal set of ports (required for eventing) is being blocked.

If that’s the case, working with Network and System admins (to get eventing working) may be the best option – in systems where Cube connection is not too critical, indeed switching to polling can be a quick fix – but still not the ideal way of setting up the comms.