I started to play around with sketches and i have a problem.. If the galileod script starts automatically during bootup and has to load a sketch (sketch.elf) the wlan interface gets lost. Then i disabled the boot script and started galileod later from console with the same effect, wlan stopped working, ifconfig doesn't list the wlan0 interface anymore. Restarting the network brings up a working wlan again.
But this happens only when galileod starts the first time and it has to start a sketch - the sketch runs always fine. The problem doesn't occur if galileod starts standalone (without sketch file). Further starts and stops of galileod work always without problems also with loading a sketch.
Currently i have no idea what the loading of a sketch has to do with the network stability, the Edison runs standalone without any software activities from the pc side.