I have a SmartSolar MPPT 100/20 and just got it installed. It's hooked up to the battery and the blue light is blinking denoting that it's on, but not charging anything. I fire up the VictronConnect app on 2 different iphones and a mac laptop and none of the devices can 'see' the controller in the VictronConnect app. Do I need to have a PV array hooked up in order for the device to show up in the app via bluetooth? If not, what is going on? The troubleshooting in the manual for bluetooth connection issues is pretty short and i've exhausted the options.