An instruction to start communication parameter sharing processing using a Wi-Fi Device Provisioning Protocol is received, processing for sharing a public key to be used in the communication parameter sharing processing is executed, and authentication processing is executed with a provision apparatus, which provides a communication parameter, by using the shared public key. After the authentication processing, a Configuration Request packet indicating a request for information about a communication layer upper than a communication layer of a wireless LAN, in addition to a request for a communication parameter used for connection based on the wireless LAN is generated and transmitted to the provision apparatus.