My test was performed with the router really close to the Zynthian Box. Not more than 1-2 meters.
This morning i've tried with the router in the next room, not too far, but it didn't worked. I want to repeat the test with a battery pack to measure the maximum distance i can reach. I think the signal that goes through the box is really low, so probably the distance wont be too big. Will see ...
I've not tested the Bluetooth. Currently it's disabled in the Gorgona image. There is some problems when enabling the bluetooth as it uses the the first serial port (AMA0), that is the port used for MIDI-IN. The second serial port is not well suited for that, so we have a problem here. Anywhere, i've to research a little bit more ... it's a tricky problem