A wireless communication system, comprising: a plurality of first wireless communication apparatuses (AP1, AP2); and a second wireless communication apparatus, wherein one of the plurality of first wireless communication apparatuses is configured to connect with the second wireless communication apparatus using electrical waves of a first frequency associated with the first wireless communication apparatus, the first wireless communication apparatus is configured to, during a connection with the second wireless communication apparatus, in response to detection of out-of-target electrical waves on the first frequency, notify to the second wireless communication apparatus information identifying a second frequency associated with another one of the plurality of first wireless communication apparatuses with which the second wireless communication apparatus is to connect using electrical waves of the second frequency, the second frequency being different from the first frequency, the out-of-target electrical waves being electrical waves other than electrical waves of the wireless communication system, the second wireless communication apparatus is configured to, on the basis of the information notified from the first wireless communication apparatus, change from the connection with the first wireless communication apparatus using the electrical waves of the first frequency to a connection with the other first wireless communication apparatus using electrical waves of the second frequency, the first wireless communication apparatus includes a search unit formed by a control unit and a storing unit, the storing unit is configured to store information about the other first wireless communication apparatus including the information identifying the second frequency, and the control unit is configured to search the information stored by the storing unit, wherein the information notified to the second wireless communication apparatus is a search result of the search. a plurality of first wireless communication apparatuses (AP1, AP2); and a second wireless communication apparatus, wherein one of the plurality of first wireless communication apparatuses is configured to connect with the second wireless communication apparatus using electrical waves of a first frequency associated with the first wireless communication apparatus, the first wireless communication apparatus is configured to, during a connection with the second wireless communication apparatus, in response to detection of out-of-target electrical waves on the first frequency, notify to the second wireless communication apparatus information identifying a second frequency associated with another one of the plurality of first wireless communication apparatuses with which the second wireless communication apparatus is to connect using electrical waves of the second frequency, the second frequency being different from the first frequency, the out-of-target electrical waves being electrical waves other than electrical waves of the wireless communication system, the second wireless communication apparatus is configured to, on the basis of the information notified from the first wireless communication apparatus, change from the connection with the first wireless communication apparatus using the electrical waves of the first frequency to a connection with the other first wireless communication apparatus using electrical waves of the second frequency, the first wireless communication apparatus includes a search unit formed by a control unit and a storing unit, the storing unit is configured to store information about the other first wireless communication apparatus including the information identifying the second frequency, and the control unit is configured to search the information stored by the storing unit, wherein the information notified to the second wireless communication apparatus is a search result of the search.