An information processing apparatus for accessing a server via a network transmits an issuance request of a certificate including information unique to the information processing apparatus to a certificate authority, and receives the certificate transmitted by the certificate authority in response to the issuance request. The apparatus determines whether or not it is possible to access the server by comparing information unique to the information processing apparatus with the unique information included in the received certificate, and restricts, if it is determined that it is not possible to access the server, issuance of a connection request to the server.