A configuration setting system is provided for a network system including a plurality of electronic devices communicably connected to a network. The configuration setting system sets a configuration of an electronic device based on a configuration of a predetermined electronic device functioning as a model device. The predetermined electronic device is provided with a checking system that checks whether there is a currently operating model device on the network when the predetermined electronic device is to function as the model device, and a determining system that determines, when the checking system detects no model device on the network, that the predetermined electronic device should operate as the model device for the network system.