Using driver 'ioptron v3'
In the indi tab you can set the connection baudrate. For me it worked right from the beginning, can check later today my settings.
The USB B connector in the mount gave me trouble a few times so i now soldered a usb wire into the mount (the usb port is a srperate, smaller pcb). I now have no connection issues since then.
I run all my imagimg from the Rpi and use vnc to remote operate.
Cheers! Bart