ok a short update, downloading a fresh stable kernel solves the stupid problem with networking. I would love to ask fedora developers - WHY do they have to tweak kernel code this bad that it causing serious issues like this on some very modern and descent hardware?
this does create a bad record for FC
Although i do like Fedora, this sort of things really do drive me nuts.
In contrast: on my desktop FC7 works pretty good out of the box.