My internet keeps disconnecting every 5 minutes or so. I usually get it fixed by going into Network Diagnostics, selecting it, and clicking continue a few times. I don't know why that works but it does. What I see in the Network Diagnostics panel when it just went out are yellow lights next to ISP, Internet, and Server, as opposed to the usual green light. I've noticed that it happens a lot more frequently when doing tasks that require a bit more internet (though never in excess of my connection speed). It's not the internet, the router, or even the airport expresses I have in my house, since the Time Warner guys came by today and did a full check of everything. They even replaced the router. I thought it would have fixed it, but still no luck. I tried resetting the DHCP license and rebooting everything, it still happens. It's very aggravating when I'm trying to download something or buffer a video. Is there anything I could try to fix this very annoying problem? I'm using a late 2006 iMac, running Snow Leopard.