Ok, so I got a Alienware M17 R4 that is about 1yr old. It has the Killer 1535 in it. I have Gigabit service at home and lately my wireless is only getting between 175Mb and 250Mb. So I tried with brand new cat 6 cable and it will only get those speeds also. Only in safe mode with networking can i get 850 Mb's. I reinstalled windows and newest drivers. No change in network speeds for the laptop. Same speeds for wife's desktop with Intel 7260 wireless. My plex server though is getting 850 Mb's on cat 6 100' cord. Router is a Linksys max stream AC 1900 (ea7500) only a year old but on warranty still. Thinking of taking it back for a Netgear Nighthawk X6 AC3200. I did order 30 min ago a Intel 9260. Hopefully that will fix my wireless but why would hardwired be showing the same speeds.