I have a LinkSys NR041 Router (4 ports). about every 2 weeks or so it will appear as if my internet ISP is down (I have roadrunner so it's not that), but by reseting my router, everything returns to normal. any idea why? my current setup has 3 computers networked to the router (all running XP, all experience this problem at the same time). It's more of an annoyance than anything else.