I am very new to VarAC!
Frequently my TS-2000 will not TX any audio with VarAC.
I see that I am transmitting but there is not signal. It seems to be only doing certain functions?
I have never noticed this problem with Winlink using VARA, only VarAC.
I have a TS-2000, Signalink USB and using CAT to PTT.
VarAC is not playing sound to your RIG. Its all controlled by VARA. VarAC may only change your mode of the rig based on YOUR preferences.
Make sure that under VarAC settings. you select USB/USB-D based on your rig capabilities.