Patent ID: 8467385

Claim:
A network system in which a router and a terminal apparatus are connected in a wireless manner, comprising: a terminal apparatus; a router; a server; and a removable recording medium, wherein, when a user intends to connect the terminal apparatus to the router: an operator of the server issues the removable recording medium to the user, the removable recording medium comprising a first terminal apparatus identifier; the removable recording medium is loaded into the router, the first terminal apparatus identifier is read out to the router, and the router stores the first terminal apparatus identifier, the removable recording medium is thereafter attached to the terminal apparatus and the terminal apparatus transmits the first terminal apparatus identifier to the router, the router receives the first terminal apparatus identifier from the terminal apparatus and determines a correlation with the first terminal apparatus identifier stored in the router, the router transmits the first terminal apparatus identifier and an identifier associated with the router to the server, and a wireless link between the router and the terminal apparatus is allowed after confirming that the first terminal apparatus identifier and the identifier associated with the router are associated in a remote database associated with the server.