A communication apparatus determines whether the communication apparatus is connected with a wireless network, and accepts an instruction for starting setting processing of a communication parameter, which is used in performing wireless communication, with another communication apparatus that has read an image including information about a frequency channel used in the setting processing. If the communication apparatus is determined to be connected with the wireless network, the communication apparatus does not start waiting for a request for the setting processing even when the instruction is accepted. If the communication apparatus is determined not to be connected with the wireless network, the communication apparatus starts waiting for the request for the setting processing in response to acceptance of the instruction.