Limits of range mean very little in a home setup. You have to imagine a straight line from your wireless point to your modem/router and what objects lie between. All sort of things, walls, pipes, radiators, wiring etc have an effect. I can position my laptop about 10 ft and get a lousy signal but downstairs get 100% If you have an old property with thisck stone walls, can be worse. Have your wireless router as high as possible and just experiment with positions to get best results.