UPNP server Windows 7 Instructions on how to disable Universal-Plug-and-Play under Windows 7: Go to Start → Settings In the settings search for Services and select Services (local) Search for UPNP-Device host, right-click and select Properties If Status is Started, please click Stop. Set Startup type to disabled, save with Apply and OK Next search for SSDP-Search, right-click and select Properties If the SSDP-Search is running, set it to Stopped. Set Startup type to disabled, save with Apply and OK Close all windows and reboot your computer Now you have to unlock the network socket.