i'm kinda speechless right now...i realllllllllll llllllly wanna blame Win 7, but i don't have any concrete proof...yet
had a random DC 2 days ago, yesterday, had 2...was browsing and just suddenly lost connection (wired network)
had to turn off modem+router, turn em back on, disable connection, re-enable connection
my old setup using windows xp never DC'd me like that in 4 years of use..if my network ever went down, it was because the ISP went down