An information processing apparatus includes a receiver configured to receive a packet via a communication line, an operating processor configured to suspend an operation thereof when the information processing apparatus is in an energy saving mode, a first storage configured to store the packet received by the receiver, a determining unit including a table in which different operations of the operating processor are recorded in association with different patterns of packets and configured to determine whether to restart the operating processor when the information processing apparatus is in the energy saving mode based on a pattern of the packet stored in the first storage and the patterns of the packets in association with the operations of the operating processor recorded in the table, and a power manager configured to supply power to the operating processor based on a result determined by the determining unit to restart the operating processor.