Port Issue

We have a Firewall (Nexland) that allows you a service called “Virtual Server” You can redirect a external Ip and port to an internal ip and port. We have an application that run on a Windows 2003 server and it listens on port 8080. I have opened up port 8080 and redirected any request to this external ip and port to this Internal computer and port.

I can telnet to the computer just fine internal, but have had no luck from the outside.