I finally understand the frustration. Nuendo 6 doesn´t recognize commands sent by JLcooper when connected with ethernet. But it recieves info. The ethernet software gets the commands but it´s not sent to Nuendo or Nuendo doesn´t recognize it.
Is there any filtering software that blocks the commands in OSX? I am now using OSX snow leopard 10,6. with software version 3.1 now. I will try mountaion lion with mcs software driver 3.8 later.
I have noticed though that the MCS 3800 responds much quicker using ethernet. The ethernet software should also be able to be configured to do things not pre-programmed from the Nuendo template. I´ll look into that if I get it to respond.