Tried rev377 yesterday. It still doesn't work.
Thanks to everyone who was trying to help me but I have litte spare time atm and so no time for experiments.
I'll send the device back to the seller and think of another solution.
Maybe I can get my network media tank to work with OPL. Otherwise I'll buy a NAS that is confirmed working with OPL.
Keep up the good work guys...great tool, great support!