Ummm, you want the green light, the green light generally means that your listening port is not blocked by anything and you can get all of the connections. Like when I had the yellow light, I couldnt get any remote connections, all I had were local ones.
Actually by the way, I suddenly have the yellow light again. These past few weeks I have had the green light, but suddenly my step-dad comes back from his trip and I have the yellow light again. He claims he didnt do anything to the modem or router, an all I did was go onto the modem and set the modem to forward his listening port along with mine. I have checked and it still has mine set to forward to the router, and that nothing has changed really, but I still have the yellow light for some reason. Its starting to get aggrivating again.