Digirig with Yaesu FT847 for VHF/UHF

I purchased the Digirig RS232 and a cable set, the Kenwood TS-480 which has the MiniDIN6 as well as an RS232 9-pin D-SUB connector. Kenwood TS-480 cords for Digirig Mobile – digirig

Is there something special I need to do to get the RS232 side working for CAT control?

It does work for PTT over the RS232, but CAT control does not seem to work.

I did manage to use the digirig using a separate RS232 cable direct from my PC (USB to RS232) and make VARA connections over the radio, so the audio side is working fine, I just seem to be missing CAT control using the digirig.