ATR and Vpilot connection

Hi…I have just got the ATR today and and have mapped Spadnext to it fairly well. BUT, I don’t get any radio connection (through Logitechradio) to VPILOT, whereas it’s normal with the 737. i.e. can’t receive or transmit on freq at all. I can tune the frequencies OK, so I know I am on the correct one, but no connection. Is there some trick to establishing connection between the ATR and VPilot does anyone know?

Im extremely late. I almost exclusively use the atr or dc6 on vatsim (vpilot). Check your settings inputs and outputs from vpilot. The radio itself works great