Abstract: A router includes: a wireless WAN communication unit which communicates with a device connected to a WAN; a wired LAN communication/power supply unit which communicates with a PoE-enabled camera that is connected by a LAN cable to a LAN, and which supplies power via the LAN cable to the PoE-enabled camera; and a main control unit which controls a restart of the PoE-enabled camera if the PoE-enabled camera is in an unresponsive state.