Airport Won't allow port forwarding applications
I've been trying to set up a port for some online gaming with friends. Before I've used apps like Port Map to easily port forward, but ever since switching to an airport extreme it hasn't let me. I've tried manually setting up ports and that doesn't work either. Would really love to know how to allow access to these applications or at least know how to set up a correct port. Couldn't call up apples technical support because apparently the airport isn't covered by apple care. Help please soon!
MacBook Pro, OS X Yosemite (10.10.2)