The present disclosure provides a method for performing initial setup with a connection acceptance device by a connection request device, the method comprising the operations of: performing an association procedure with a configurator; transmitting a first probe request message to the configurator; receiving a first probe response message including information required for a connection to the connection acceptance device from the configurator; driving a timer and transmitting a second probe request message to the connection acceptance device; receiving a second probe response message from the connection acceptance device; and starting a secure connection to the connection acceptance device when the second probe request message is received before the timer has expired, and information included in the second probe response message coincides with the information required for the connection, which is included in the first probe response message.