According to an embodiment, an information processing apparatus includes an operation device and a controller. The operation device receives an instruction to turn off a power supply from a power supply device. when the operation device receives the instruction to turn off the power supply from the power supply device, the controller transmits a request of disconnection of the communication to the external apparatus. Further, the controller turns off the power supply from the power supply device after waiting for a predetermined time period after the transmission of the disconnection request.