Indeed, I just downloaded PortForward, before running it I tried /localinfo -p, didn't work, right after running PortForward, it worked. I have disabled all firewalls from windows and from my router, no AV software running.
I tried /socklisten -p test 8009, PortForward correctly reports the port 8009 being forwarded, I close that socket and it correctly reports it not being forwarded anymore.
Well I don't think Upnp is unreliable, rather my/our router
