**I've searched for this issue, and haven't found an answer** Problem: Wifi works ONLY in room where routers are. We have 2 in the house. Just got macbook back from repair store. I needed some work done. I got new 160gb hard drive, new airport card and 2gig RAM upgrade and Lion installed. Wifi works excellently in the room where the routers are. The minute I step outside, it drops. Weird thing is it used to work. I'm at such a loss at this stage why this is given all the upgrades on my macbook. Anyone?