I have upgraded my Wireless card with the 15.6.1 driver. My dropout problems decreased considerably, however it hasn't gone completely. I am still experiencing Wireless strenght drops from time to time, especially when I VISIT www.tumblr.com. This is interesting. Two out of my three visits to this particular web site have caused my wireless strength dropped from 5 bars to 2 bars. I hope it means something to you Intel guys in your efforts to solve this problem, cause it didn't to me.
(Samsung NP900X4D-A02TR)