Hello,
I have and FF400 connected to and win 7 and a FF800 to a mac osx 10.11, and i use them as audio input from FF800 goes to adat ch´s as busses. 1 2 3 4 mono and 2 pair´s 5/6 & 7/8.
The problem is have is that;

When i send and sound from FF800 through adat ch to FF400, normally we should see input levels hot and nothing at the correspondent software output! The problem is that i have equal levels in the software playbacks.

If i reverse the path, from  from FF400(win) to FF800 (mac), this does not happen.

This happens without any DAW, only totalmix.

If have checked that none of the windows programs are using  hardware inputs.

Any ideas?

Thanks in advance,