Disklavier

Greetings group!  I am hoping someone can explain my most recent, miserable failure.  I have a MarkIIXG disklavier that always works!  I can use either my iPhone6 or iPad2 to play it, and any other Disklavier so far, by using the Yamaha I-MX1 MIDI interface connected to the MIDI In on the Disklavier.  I use Sweet MIDI Player with the settings Core MIDI out and the selected interface.  MIDI in is the session network.  Always works.

Now enter the new PUC  wireless MIDI interface Santa brought me for Christmas.  I connect either iDevice using the same network settings (mipucXXX).  The PUC is connected via MIDI cable to the same MIDI in port on the Disklavier.  The PUC is flashing red indicating that MIDI data is being transmitted.  But the piano is not playing!!!!!  Grrrrr………

On closer look at the packaging I am wondering if this unit only works backwards - by transmitting MIDI out from the Disklavier to an app on the iPad.  However, the PUC is flashing red so it should be working.  Is there a difference between MIDI data that flows through a MIDI cable and that which comes thru the air?  Does the receiver make a difference?  Could it be that the MarkIIXG just cannot read wireless MIDI data?  Ahhhgggg!

Also, there are different drivers for the iMac and the PC.  Maybe I will try those.

Hope someone knows the answers!

Carol Beigel