i recently bought a toshiba satellite radius and a dell inspiron 15 7547. Both are having major degradation of wireless speed when I move 15 ft from router (couple of internal walls in between). I have an older dell and an acer that dont have any problem with the distance.
Laptops are new and have latests drivers. The only diff is the new laptops have windows 8.
I have Verizon fios 50/50 speeds