A wireless communication device (100, 100a), comprising: a wireless communicator adapted to wirelessly communicate with another wireless communication device (100, 100b); and a processor adapted to: after connecting to the other wireless communication device (100, 100b), exchange, with the other wireless communication device (100, 100b), device information that identifies the wireless communication device (100, 100a) and encryption information for encryption of wireless communication with the other wireless communication device (100, 100b), after termination of a connection with the other wireless communication device (100, 100b), determine, based on the exchanged device information and the exchanged encryption information, whether reconnection to the other wireless communication device (100, 100b) or wireless communication after reconnection with the other wireless communication device (100, 100b) has succeeded or failed, and when reconnection to the other wireless communication device (100, 100b) or wireless communication after reconnection with the other wireless communication device (100, 100b) fails after termination of the connection with the other wireless communication device (100, 100b), control the wireless communicator to broadcast an advertising packet that includes log data about the reconnection failed, respectively the wireless communication failed after reconnection, as connection information related to the connection. a wireless communicator adapted to wirelessly communicate with another wireless communication device (100, 100b); and a processor adapted to: after connecting to the other wireless communication device (100, 100b), exchange, with the other wireless communication device (100, 100b), device information that identifies the wireless communication device (100, 100a) and encryption information for encryption of wireless communication with the other wireless communication device (100, 100b), after termination of a connection with the other wireless communication device (100, 100b), determine, based on the exchanged device information and the exchanged encryption information, whether reconnection to the other wireless communication device (100, 100b) or wireless communication after reconnection with the other wireless communication device (100, 100b) has succeeded or failed, and when reconnection to the other wireless communication device (100, 100b) or wireless communication after reconnection with the other wireless communication device (100, 100b) fails after termination of the connection with the other wireless communication device (100, 100b), control the wireless communicator to broadcast an advertising packet that includes log data about the reconnection failed, respectively the wireless communication failed after reconnection, as connection information related to the connection. after connecting to the other wireless communication device (100, 100b), exchange, with the other wireless communication device (100, 100b), device information that identifies the wireless communication device (100, 100a) and encryption information for encryption of wireless communication with the other wireless communication device (100, 100b), after termination of a connection with the other wireless communication device (100, 100b), determine, based on the exchanged device information and the exchanged encryption information, whether reconnection to the other wireless communication device (100, 100b) or wireless communication after reconnection with the other wireless communication device (100, 100b) has succeeded or failed, and when reconnection to the other wireless communication device (100, 100b) or wireless communication after reconnection with the other wireless communication device (100, 100b) fails after termination of the connection with the other wireless communication device (100, 100b), control the wireless communicator to broadcast an advertising packet that includes log data about the reconnection failed, respectively the wireless communication failed after reconnection, as connection information related to the connection.