Ok. I got a question.
If I turn on all four graphs that are networked with Ethernet and NMEA2000, then I turn on the sonic hub for some tunes, why does the sonic hub turn off if I turn off any one of the four graphs?
If I turn on only one graph, then activate audio or video from the sonic hub, if I then turn on a bow graph and turn it off, it turns off the sonic hub via NMEA2000.
I think this is due to the NMEA power and which unit has it connected to it main. The sonichub uses it's powersource, but when you activate a graph the NEMA powers on and causes to power linkages. Don't quote on that, but I think I remember seeing a diagram on this a great time back.
You may need to call Lowarance and walk it through with them.