It’s easy to turn off Wi-Fi access to a specific device on your network. From the Dashboard, navigate to the device you want to turn off. This can be done by tapping All Devices in the middle of the screen, Devices in the bottom left, or on the specific category of the device for which you want to disable Wi-Fi access.
Once you have identified the device, you can turn off access in two locations. One, from the device overview screen, or two, by moving the toggle switch to Off on the Device Details screen. This will turn off Wi-Fi access for this device.