So after spending another fruitless night with HP "Engineering" doing the same crap as the evening before I decided to put one more attempt at it on my own. Yes it got geeky:
It seems that for what ever reason, my setup does not like using the wireless or USB connection to the HP thingy. Tried direct connect Ethernet:
Well that worked! Sorry to say that I wasted two full evenings of my life screwing with HP support. I knew better than that, but did so anyway! Stupid me!
So for some therapy I fired this up:
I know I can fix anything here!