I have the tuner for a few weeks in the daily operation, connected via LAN and optical Ausgang.Alles not working fine, if Internet Radio or via USB Anschluss.Die FB is sometimes a bit slow, which adheres but in Grenzen.Leider is the instruction manual supplied very helpful, with a little technical understanding but no Problem.Ich am personally satisfied with the purchase of this Gerätes.Es now remains to be hoped that it is not defective.