The GeoCue software suite uses client/server architecture. Production staff use a GeoCue Client installed on their local workstation to access projects resident on a GeoCue Server. The GeoCue Server is normally installed on the same local network as the workstations hosting the Clients, but hosted on a separate machine. Technically, any Client will be able to access the Server as long as there is a viable network connection between the two machines and both machines are in the same domain. Practically, the performance of the network between the Client and the Server will have a large impact on the overall performance of GeoCue. An internal GB network is generally recommended for any production environment. Performance over external networks (e.g. VPN) is usually not adequate.
Read complete article: CueTip – External Network Performance Testing