Fuente: Wipo "IOT" An embodiment of the present invention relates to a method and apparatus for an AP change in a Wi-Fi IoT device, capable of enabling Wi-Fi profile information (SSID/password and the like) stored in a plurality of Wi-Fi devices to be replaced at a stroke when an existing Wi-Fi AP needs to be replaced with a novel AP. The method, which is an access point (AP) change method performed by at least one of a plurality of Wi-Fi IoT devices (#1-#N) using the same AP, includes the following steps of: (a) determining whether a change to a novel AP (hereinafter referred to as a 'second AP') occurs in one (hereinafter referred to as a 'first Wi-Fi IoT device') of the plurality of Wi-Fi IoT devices (#1-#N) using the same AP (hereinafter referred to as a 'first AP'); (b) when determining that the change to the second AP has occurred in the step (a), delivering information of the changed second AP from the first Wi-Fi IoT device of the plurality of Wi-Fi IoT devices (#1-#N) to at least one other Wi-Fi IoT device (hereinafter referred to as a 'second Wi-Fi IoT device'); and (c) changing the AP in the second Wi-Fi IoT device based on the information of the changed second AP received from the first Wi-Fi IoT device. COPYRIGHT KIPO 2023