Troubleshooting

I’ve used my digirig/Xiegu G90 successfully for FT8 in the past using flrig. Now when I connect to my PC, I see the new COM port created, but flrig does not see it and fails to connect. What could cause this behavior?

I have the same problem. Flrig can operate PTT. Tune. PRE. ATT. But WSJTX does not connect to com port.
Baud rates and Bits are the same on Com port and G90
Suggestions?

little different between op and @Peter_Fitzgerald.
if flrig is ‘working’, you need to choose flrig as the radio in wsjt-x, not g90.

only 1 application can connect to a serial port at any given time.
(this could be the problem with the op as well if another program has been started before flrig that is grabbing control of the comport)

good luck
kb0wlf