No UPnP-enabled devices found

So yeah, other programs manage to use UPnP perfectly.

The mapped ports are showing up in the router info, Windows services run properly, I have made identical copies of Windows Firewall settings and only adjusted the program for the rule, I even shut down one of the programs using UPnP and stole its port for Tor – that didn't work either. Then, I forwarded that port manually, fired up the other program, which confirmed it's working properly, shut it down, switched to that port on Tor and still getting errors.

Now, I have just configured the router manually, and that gives me:
Aug 25 03:58:24.255 [Warning] Your server (x.x.x.x:514) has not managed to confirm that its ORPort is reachable. Please check your firewalls, ports, address, /etc/hosts file, etc.
Aug 25 03:58:24.265 [Warning] Your server (x.x.x.x:9030) has not managed to confirm that its DirPort is reachable. Please check your firewalls, ports, address, /etc/hosts file, etc.

All other programs, servers or clients, manually forwarded or using UPnP work, but not Tor. Does anyone have any suggestions?

Thanks for reading.

First, check if the UPnP function is enabled in your router.
Second, forward in your router from your public external IP to your private internal IP the ORPort (eg. 443) and the DirPort (eg. 9030)
Then, check if you made exceptions in your firewall pointed to tor.exe

Hook your TOR with Vidalia 0.2.21 and go to Settings -> Sharing -> Basic Settings
Check the box "Attempt to automatically configure port forwarding" and click the Test button.

Use the port checker of the PortForward Network Utilities.