A method by which an access point, AP, device from among a plurality of AP devices on a same network establishes a connection to a terminal , the method comprising: receiving signals of the terminal ; determining whether the terminal is located within a pre-set distance range from the AP device based on the received signals; registering, by the AP device , media access control, MAC, address information regarding the terminal, when the terminal is located within the pre-set distance range; determining whether the terminal is moving away from the AP device or moving towards the AP device based on a difference between the signals received from the terminal; when determining that the terminal is moving away from the AP device, deleting the registered MAC address information; when determining that the terminal is moving towards the AP device, maintaining the registered MAC address information; receiving a connection request to the AP device from the terminal; comparing the MAC address information regarding the terminal extracted from the connection request to the registered MAC address information; and establishing a connection between the AP device and the terminal based on the comparison; wherein, in the comparing: when the registered MAC address information is identical to the MAC address information regarding the terminal , the terminal is connected to the AP device , and when the registered MAC address information is not identical to the MAC address information regarding the terminal , the terminal is not connected to the AP device . receiving signals of the terminal ; determining whether the terminal is located within a pre-set distance range from the AP device based on the received signals; registering, by the AP device , media access control, MAC, address information regarding the terminal, when the terminal is located within the pre-set distance range; determining whether the terminal is moving away from the AP device or moving towards the AP device based on a difference between the signals received from the terminal; when determining that the terminal is moving away from the AP device, deleting the registered MAC address information; when determining that the terminal is moving towards the AP device, maintaining the registered MAC address information; receiving a connection request to the AP device from the terminal; comparing the MAC address information regarding the terminal extracted from the connection request to the registered MAC address information; and establishing a connection between the AP device and the terminal based on the comparison; wherein, in the comparing: when the registered MAC address information is identical to the MAC address information regarding the terminal , the terminal is connected to the AP device , and when the registered MAC address information is not identical to the MAC address information regarding the terminal , the terminal is not connected to the AP device . when the registered MAC address information is identical to the MAC address information regarding the terminal , the terminal is connected to the AP device , and when the registered MAC address information is not identical to the MAC address information regarding the terminal , the terminal is not connected to the AP device . <EOS>