Hi,
I've purchase a brand new Samsung ATIV Book 9 plus NP940X3G and I've got a lot of problems with "intel Dual Band Wireless N-7260" on Windows 8.1 update.
Wifi disconnect randomly all the time. Even when HT is activated or not. uAPSD disable or not, didn't change anything. Same for all power management settings.
My microsoft Bluetooth mouse is extremly slow and begin slowest and very hard to control when wifi is in use.
Intel MUST found a solution !
Wifi downstream is awful, very very slow and unstable. I try theses drivers : Wireless_16.7.0_De164, Wireless_17.0.0_De164, Wireless_17.0.5_De164
Here we're a lots of user with same hardware troubles : johannesmeyer, rootk.
I'm so desperate its impossbile to work without a reliable Wireless connexion, I want to change this card. johannesmeyer if u change it on your laptop, could you help us and tell how do you proceed ?