I'm also having issues with a G4x I just installed in a runaround car. Cannot get the slightest connection with my laptop that I use for Link G4+/Vipec, Motec with no dramas. Spent hours going back and forth through software installing, uninstalling, updating windows back and forth with no success, getting errors saying usb device not recognised. I then plugged in an older Surface Pro and it connected immediately however it's unusable to try and tune as it's so slow and any change in engine state (ie, stall to cranking) will cause it to freeze for 8-10 seconds before I can adjust anything. Very keen on a fix for this. As soon as the cable is plugged in I get a popup "Usb device not recognised" - device descriptor request failed
