Background info: From our house we pick up this random free wifi network (linksys) and I usually bum off of it when I have to use the computer that isn't hooked up to our cable modem. Morally questionable?, maybe, but hear me out... I got a new macbook about 2 weeks ago and it picked up on linksys instantly and I could use the internet. However, the connection was spotty and Airport generally only picked up 2-3 bars. But today, I now have perfect connection but when I try and open Safari or Firefox it says "no internet connection". I checked my Network and my Airport connection has the green dot and everything, so what's happening? Is it because whoever owns the linksys wireless increased their security or is there something wrong with my mac?