Double-check that you have a wired Gateway Puck and that it is plugged in. If your Gateway Puck is online and the rest of your units are not showing up in the Flair App, follow the instructions above to place your Flair system into Setup Mode.
The E-Paper displays on the Puck continue to display even without power. That means that a Gateway Puck screen may show the WiFi symbol when unplugged. Click or rotate the display on the Puck if you are unsure whether it is powered.