Got this message when opening a torrent

[LucharesuFan619 0]

Have never had any problems with torrents before, but now any torrent I try to open, I get this message:

 

Couldn't listen - unable to forward port via UPnP

 

Any idea what's up? What's wierd is that my Internet works perfectly fine.

 

Thanks in advance.

[Dr. Tyler; Captain America 0]

Did you just add a router?

[Carnival 0]

Firewall....?

[Dr. Tyler; Captain America 0]

Either one. It's a problem that happens when your "listen" ports are blocked. Normally, this is a big issue when you use a router but it could be a software firewall too.