Abstract: To reduce burden of a user's wireless LAN setting, a wireless communication system includes a first communication device and a second communication device so as to perform a wireless communication with each other. The first communication device includes a determination part that determines whether the wireless communication device connects to a relay station which performs a wireless relay communication, and a communication part that performs a wireless communication in a first connection mode to communicate with the second communication device through the relay station in a case that the relay station is connected, and in a case that the relay station is not connected, the communication part that performs a wireless communication in a second connection mode with the second communication device, which do not communicate through the relay station.

Abstract: To reduce burden of a user's wireless LAN setting, a wireless communication system includes a first communication device and a second communication device so as to perform a wireless communication with each other. The first communication device includes a determination part that determines whether the wireless communication device connects to a relay station which performs a wireless relay communication, and a communication part that performs a wireless communication in a first connection mode to communicate with the second communication device through the relay station in a case that the relay station is connected, and in a case that the relay station is not connected, the communication part that performs a wireless communication in a second connection mode with the second communication device, which do not communicate through the relay station.

Abstract: A wireless communication apparatus that establishes connection with an access point wirelessly to perform wireless communication is provided. The apparatus includes: a beacon receiving section that receives a beacon that includes identification information of the access point; a key input accepting section that accepts an input of a security key that is to be used for encryption of wireless communication between the wireless communication apparatus and the access point that is a connection target; a communication method determining section that determines, on the basis of the security key, a communication method that is to be used for communication with the access point by selection out of a plurality of communication methods using encryption available for connection with the access point; and a communication controlling section that carries out control for communicating with the access point by using the received identification information of the access point and the determined communication method.

Abstract: A network-connected apparatus, which performs communication using an IP address via a network connected thereto and has a fixed first IP address having been set as an own IP address used for communication performed thereby, includes a detection section configured to detect that the network-connected apparatus has been connected to a network, an IP address acquisition section configured to, when it has been detected that the network-connected apparatus has been connected to a network, not perform communication using the first IP address, but acquire a second IP address, which is not used by any one of the other apparatuses existing on the network, by using an own MAC address thereof, and an IP address setting section configured to set the second IP address as the own IP address used for communication performed by the network-connected apparatus.