A portable radiographic image capture device includes: an radiographic image data generating means a wired communication means that includes a connecting terminal and that performs wired communication with an image capture controller a wireless communication means a storing means that stores, as an IP address used to identify the device itself, a first IP address used to perform wired communication and a second IP address used to perform wireless communication and a setting means that sets the first IP address as the IP address to perform communication with the image capture controller in a case in which the connecting terminal and the image capture controller are wire-connected, and sets the second IP address as the IP address to perform communication with the image capture controller in a case in which the image capture controller is disconnected from the connecting terminal.
