Before dual boot i was only using Windows 10 in which the speed was just the one i paid for -40 Mbps. After dual booting Ubuntu 16.04 the WiFi speed in both Windows and on Ubuntu have been affected. It became less than half of what i was supposed to get.I get a maximum speed of like 17-18 Mbps on both the OSs. But while on Ethernet i get a proper speed...How can i make it proper. Yes i have tried methods from other pages but they seem to have no effect on the computer!!! Please Help!!!