According to one embodiment, an information processing apparatus includes a cabinet, a first storage module contained in the cabinet, a communication unit which is detachably inserted into the cabinet, equipped with a second storage module, and used for connecting to a communication line, a verification module which verifies identification information of the communication unit stored in the first storage module against that of the communication unit stored in the second storage module after receiving an instruction of activation of the information processing apparatus, a registration module which registers with the predetermined server unit for use of the communication unit when verification is performed against the identification information of the communication unit stored in the predetermined server unit and the use of the communication unit is determined to be matching.