Drivers and "interference" account for 99% of the problems. 10 feet is a large enough distance from the router (if you are next to it, it can result is slower speeds) - and other devices in the immediate proximity of the laptop could cause problems (i.e. the NEXUS 7 sitting right next to it during testing). Try putting them about 10-15 feet apart for testing....or turn off wi-fi on the tablet while testing.