I have the new 17" MBP running snow leopard. Recently I've noticed I get kicked off my network no and then. The same thing happens each time. I loose my internet. I notice my MBP is searching for a network. It stops looking. I select my network. It tries to connect but can't. When it stops I try again and it connects no problem. That's exactly how it happens every time. On the second attempt it connects no problem. I thought the problem was my router so I bought a refurbished Airport Extreme. Now I can't get it to work properly either. It worked for a day or so but even then it would loose connection. I tested airtunes (which was why I wanted the AE) but half the time it doesn't work and when it does it's crackly. What's weird is it doesn't work even when my internet is. Then my internet got really slow. I restarted my AE and the internet was running fast again but still intermittent airtunes. Then my internet went out and my network hasn't shown up at all. The AE has a green light and after unplugging the network still doesn't show up. I went back to my old router and the network shows up and internet is fine.. until it goes down and I repeat the process described earlier to get it up and running. Could this issue be with my mac? I want to return my airport extreme if in fact my original router isn't the problem, especially since my airport extreme is having even bigger issues. Does anyone have advice?