Make sure both of your sensors are turned on. There should be a green light blinking every few seconds if the devices are on. Is my wrist sensor on?  Is my net sensor on?

Go to Settings >> Net Sensor and select your net sensor from the list. The sensor you select will blink consecutively for 5 seconds. Go to Settings >> Wrist sensors and select your wrist sensor from the list. The sensor you select will blink consecutively for 5 seconds.

Both devices must be connected in order to start a workout or drill.