You could use wireless in the same way you use a wire by restricting wireless clients by MAC address, for example. When you want the IoT device to have Interne

You could use wireless in the same way you use a wire by restricting wireless clients by MAC address, for example. When you want the IoT device to have Internet access, temporarily relax the restriction. I did this because my TV is mounted on a wall with a large desk in front and its ethernet port is inaccessible.