When attempting to connect a Stages Dual side crankset to head unit, the head unit will find the crank sensor. When attempting to connect nothing happens. It is like the ANT+ handshake is not here. Bluetooth has been disabled. Thought it might just be the crank power unit and then attempted the same with an older Pioneer Dual arm unit and the same thing. It locates the sensors but will not complete the handshake to connect.