I was asked to forward 2 ports, 50501 to a server and 50502 to a desktop. I created the rules in the router and setup the rules in windows firewall. It worked fine for the server, but the desktop doesn't respond.
Crazy thing is I disabled the rule on the router for the desktop, I checked on canyouseeme.org, it was able to detect the open port. When I enable the rule on router, the port is no longer detected.
The desktop is running windows 7 pro.
Has anyone experienced this before? What could be wrong?