UPnP is Cool!!

If you want to use UPnP you have to open it, not close, like some people suggested, right

You have Green light because you forwarded port.
You get "Unable to map UPnP", because obviously your UPnP is closed. Ok, OPEN it then.

With UPnP opened, you DO NOT need to forward port at all.

UPnP allows dynamically open/close ports required for uTorrent (or another UPnP enabled app)

If your modem supports Upnp, goto Windows XP firewall setting, check(open) UPnP Framework. Make sure UPnP is enabled in uTorrent.

That's it.

I found that with UPnP downloads are much faster (and you don't have to mess with your modem forwarding a port).

By Slishnevsky.