Both my wife and I have bikes with shimano DI2 gears and Garmin Edge 840 devices.
My garmin connects automatically to my gears without any manual intervention.
My wife has to manually connect to her gears via the sensor menu and on 2 occastions has actually connected to my gears!
How can we get the Garmin to automatically connect to the gears?
How can we get the Garmin to connect to the gears on her bike rather than mine?
Thanks