Ryan - t's a Buffalo Airstation, a clone the WRT54g (and not stripped down like the v5/v6 revs). Under DD-WRT/Tomato, it should be identical. I agree it's not the router. 1.7 beta 1355 does map uPnP on XP. Where is the uPnP log you want to see? All I get is "Unable to map UPnP port" in the logging tab. Nothing in the router logs. Aaargh! I just rolled back to 1.6.1 and uPnP works. It was NOT working before...