I have had connection twice but now “Plug in your USB-cable…”. I have restarted everything. Change to several of USB-ports on the PC. When I connecting cable I can hear a short bump-sound.
Did you install the FTDI drivers?
FTDI USB Drivers Changes latest 2017-11-08. Is that correct or were shall I find it. Surged on the webb but are so many hits so I dont know were to go.
Get the version from there.
If it seems like it’s locking the stepper motors, then it is probably connecting.
Have you tried rebooting your PC? Have you looked at the Machine Inspector console in Easel? I’m assuming you’re using Easel.