Gotcha. You can never tell how an IOT devices is scanning your network. It could be passively listening for broadcast messages, or it could be actively scanning

Gotcha. You can never tell how an IOT devices is scanning your network. It could be passively listening for broadcast messages, or it could be actively scanning all the private subnets. So, you probably need an access point that can do "client isolation" or "layer 2 isolation". This would prevent clients on the same wireless SSID from talking to each other. For example, looks like the Ubiquiti access points can do it. https://evanmccann.net/blog/2021/11/unifi-advanced-wi-fi-settings#fnr4 https://evanmccann.net/blog/2021/11/unifi-advanced-wi-fi-set...