bekasit

Dead end here... I guess the local Line6 shop can be the only potential help, right?

Sure, I learned that once I dived deeper into the internet. But the interface does not work either, as I described above. I just mentioned the HD500X if there is some wizardry hidden inside the multieffect unit that could help to debug if the guitar is half-dead, or if there is a software issue on my laptop.

Yes, the 1/4 socket was always plugged in. First I tried using the guitar powered from the footswitch box through the TRS cable. Then I tried with a battery + 1/4 stereo headphone adapter trick from a previous comment. Not a happy chappy: the interface LED switched from flashing red to green both cases, but there is no valid selection to start Workbench with. 1st screenshot with the device selection window when starting Workbench. 2nd screenshot is the installed SW and divers from Monkey. I also got a HD500X, but if I understood correctly it will not work with a Variax 700. I thought I mention that hoping it enables a different way to debug the guitar.

Hi, I'm in exactly the same situation as nahssen. My setup is Variax 700 + VDI Interface (purchased brand new for a small fortune) + Variax Workbench + Win10 on a Lenovo ThinkBook 15. The interface lights up green when the cable is connected to the guitar, Monkey can see the interface, but not the guitar. I thought I'd follow your advice with the support ticket, but Line6 registration form rejects the application telling me that the SN is not valid for the model selected. Can't register, dead end here. What do I do?