ZED R16 Firewrie Low Gain

Hi there,
I am running a ZED R16 via Firewire into Mac OS sierra 10.12 (Which is apparently still compatible)

The mac doesn’t pick up the desk on FW port 1, only port 2 and the gain in my DAW is very low. Gain coming out of the desk is fine.

Any input or advice on solutions would be appreciated.

Kind Regards,
Glenn