Hahah! LOL! I have/used to have a similar problem. I had turned my machine off for ~5 minutes and all of a sudden it booted right back up! I turned off my WOL, etc, and it doesn't do it anymore. I believe it was my DSL modem, but I'm not sure. My modem sends out packets every 2-3 seconds to look for new computers to assign IPs to. Man, that scared me the first time! Yes, the green LED is always suppose to be on. I am using the Asus A7V and Asus A7V133 and they both function the same way. The NIC stays powered up for WOL functions. WOL is really never needed in my house because all of my machines are powered up 24/7.