If that is the case, I recommend opening a support ticket. The Amazon page for that cable does not specifically state bilingual, so not sure if that is still the hangup. I would double check the version of Universal Control that it is 1.7.3. The only other options I see as possble are bad port on the FSP (did you try both ports for connectivity), or bad TB port on the mac. I don't know enough about macs to be of any assistance there.