I'll try latest drivers and get back to you.
Yes fresh install. I know what you are trying to say, but by using same router with same cable plugged in the same port my RVE desktop has slower download than wife's pc (my hardware is faster). Line feed was constant during the test (I can monitor this real-time directly on router).
Edit: Chino, you mean latest drivers from mobo support page or intel page?
Edit2: Now I feel dumb. It was the driver from Asus support page. Latest Intel driver dated 28/10/2014 did the trick. I urge everyone having this problem, go download
these Intel drivers and give them a spin.
Thank you for your replies.