This extender worked even better than I expected. In fact, the experts at Best Buy claimed what I wanted to do was impossible with out using an ethernet cable. I decided to try it anyway. My predicament: I live waaaaaaaay out in the country and internet is only available via satellite and is pretty costly. I needed to extend my wi-fi to the guest house which is roughly 150 feet away. Having read some of the reviews, I thought this might just do the trick. And, man, did it ever! First, I tried putting the extender in the pool house, which is about 1/3 of the distance closer to the guest house, but it didn't work. I was pretty bummed, but decided to see what would happen if I just set it up in the window of the guest house itself. BINGO! It picked up and amplified the signal beautifully. So, my advice is, if it's not working as you expected, try moving it to a few different locations. One of them is bound to work.