I did this, it doesn't work at all. And that's all LIne 6 support suggests...
But I finally found the solution!!
The problem comes from the power settings in Windows.
You have to set the minimal state of the processor to 100% in : Config panel - power management - advanced settings (I hope I translated correctly the menu items, sorry I'm French)
Hope this could help others and avoid them to spend hours searching for a solution...
In my opinion, Line6 should precise this point in the Troubleshooting guide...
Have a nice day