Ok, I just thought I would throw up one last response so that anyone else who is searching for an answer can get the "right" answer.
Anyway, I checked out Merlin's custom mod of the ASUS firmware and I found what the problem is, but basically the router does NOT maintain connections when machines go off. Basically the little lights on the NIC do not stay on when the machine is powered OFF even though WOL is enabled.
So I was going bonkers trying to change settings on the router and then using Merlin's mod to realize that the problem was with the ASUS firmware. So I went ahead and installed DD-WRT and guess what? It works. :) Yep, the little lights stay ON and I can even do WOL from the Internet or Wake on WAN - WOW.
So for anyone else looking to do this just make a note of these two URLs because you have to install DD-WRT first and then do the "tweak" since the RT-N66U does not do network broadcasts.
1) Install DD-WRT
2) I used Build 18946
Yeah, the DD-WRT database tells you to use another firmware version but I used the Wiki's version. Works like a charm with the newer Build. :)
3)Set up WOL
Once again, the ASUS firmware is not keeping connections alive when machines turn OFF so this is a "bug" that ASUS needs to fix. Also, I see what Merlin is saying about logging onto the Router, because DD-WRT has a WOL tab where you can turn on machines within the LAN but thru the router. Hell, DD-WRT even has a DAEMON so you can do SCHEDULED WOL - freaking AWESOME!!! This obviously prevents random broadcasts coming from the Internet, which may seem like a good security "plug" but you can always change the broadcast IP used.
At least you have BOTH options now, but the ROUTER must keep connections alive which the stock firmware does NOT do. So go DD-WRT because WOW it has a LOT of options... :)
UGH, this forum has NO HTML formatting?! ASUS?! Come on, this site is sucking...