CueServer Studio uses two ports to connect. These ports enable CueServer Studio to both communicate with and Auto-Discover networked CueServers. The two ports along with their use can be found below.
UDP port 52737 for Auto-Discovery — It uses multicast UDP packets to “find” CueServers to populate the Navigator Window.
TCP port 80 for HTTP — All of the Editor Window panels communicate with CueServer over HTTP (and WebDAV) via the standard port 80.
One can avoid the auto-discovery port if a CueServer is added to CueServer Studio using the “Add Remote Device” feature.