In my case everything is working fine, for now, but external IP address: [12:10:29] NOTE: Settings file found in directory of executable; using that. [12:10:31] UPnP: Discovered new device: http://192.168.254.254:80/upnp/WANPPPConnection?dev=4 [12:10:31] UPnP: Mapped port 50987 -> 192.168.254.1:60525 [12:10:31] UPnP: Getting external IP [12:10:31] UPnP: Got external IP: 0.0.0.0 My router is a Siemens Speedstream 4200, on Windows XP SP2 fully updated.