Pioneer DDJ-FLX 6 controller on Rekordbox 6 not working with Dell XPS 9380

Hi, Guys

After spending more than 10 hours straight today trying to resolve the issue, I finally decided to post here, already feeling a little hopeless..

1. I am trying to connect a Pioneer DDJ-FLX 6 DJ controller to my new Dell XPS 13 9380 on an Intel i7-8565U CPU and Windows 10
2. I am using the Rekordbox 6 software (latest cut)
3. The laptop does not recognize the controller at all, it only lights up its basic functions show the controller is powered, but is not recognized as a DJ controller
4. When logging into Rekordbox software the only thing I can hear is the sound of constant connecting and disconnecting of the controller via the USB port when it eventually stops and the controller "plays dead"

I tried to implement all ways to tackle this, as suggested on several discussion boards, including:

1. Using another USB port, another USB cable, etc.
2. Reinstalling the BIOS and audio drivers (Realtek)
3. Running a complete system update on Windows 10
4. Removing the Maxx Audio application
5. Reinstalling the older versions of the Realtek audio drivers
6. Overriding the automatic Dell drivers auto-update and running it manually through all possible driver groups (incl. audio, USB ports, Thunderbolt, firmware, BIOS and everything else)

... and unfortunately, this far the only conclusion I was able to reach is that perhaps I will need to return the laptop...

Please advise as this has started to become really frustrating without any trace of how to solve the issue.