It does not matter if wake on LAN is enabled or not, your PC always supplies power to the NIC, and the light will flash if it receives a packet.
So. . . If you never saw it before that means you now have another computer running on your LAN that is sending packets.
Well, that is food for thought. However, I'm not on a network, does that matter? (I mean that I only use the NIC to connect to the internet). Also, does the fact that I installed software from a torrent bit have anything to do with this occurance? Since that night it has not happen again. I did unplugg the computer and the light stopped. I am real just asking all these questions to learn....and I do appreciate your patience in answering them for me.