I have had my Time Capsule set-up (first gen TC) for over two years. I use Port Forwarding to access some security cameras.

Out of the blue, I can no longer access my cameras remotely. I can still view them via my local network.

Checking the port via the sites that can do it, they state my port is closed. I called my ISP (Time Warner) and they state they do not believe in port blocking and no ports are blocked. I have tried different ports to see what is going on an no port can be accessed outside of my local network.

I have restarted everything, tried different ports, and even reinstalled the camera software. The settings seem to take when I put in the settings. NAT is enabled.

Is there a way to check to see if my Time Capsule is the problem or is there anything else I can try?