unable to open port on router

Silly question maybe - have you rebooted your router? If you have - go back in to the router settings to see if the port forward entry still exists, then check again;

go to

http://www.canyouseeme.org

put your port in there to see if it is open.

Here m8 found that in the net may help
Port Forwarding - D-Link - DSL-2680 (D-Link Firmware) | PcWinTech.com

Also remember to set the firewall to law and save and reboot the router

clink the link above it explains it pretty easily buddy (Tomy Post)

If your using CCcam is this in your cfg?

SERVER LISTEN PORT : port number

Then try and see if port is open.