An information processing system including an information processing apparatus that receives captured radiographic images captured by a plurality of image capturing apparatuses each having a wireless communication function and a wired apparatus that connects to the information processing apparatus in a wired manner, the information processing system includes a setting unit that sets, in a case where one of the plurality of image capturing apparatuses is connected to the wired apparatus, the connected image capturing apparatus as a master unit of wireless communication, and a communication unit that receives, via the image capturing apparatus set as the master unit, a captured image of a different image capturing apparatus that is received through wireless communication by the image capturing apparatus set as the master unit from the different image capturing apparatus set as a slave unit of wireless communication.