Hopefully you had the game running while you tested to see if the port was properly forwarded/
Also check the ingame network settings and make sure your ED install is set to use ports in the range you setup
Not at last, although this might be only semantics - you dont open the ports on the router - you forward those ports to the internal ip address of your gaming system (which preferably should use a static ip address or have a dhcp reservation) which should also have those ports open in the windows firewall (or whatever other firewall you may use - some current generation antiviruses are using their own firewall and/or network inspection features)
Also check the ingame network settings and make sure your ED install is set to use ports in the range you setup
Not at last, although this might be only semantics - you dont open the ports on the router - you forward those ports to the internal ip address of your gaming system (which preferably should use a static ip address or have a dhcp reservation) which should also have those ports open in the windows firewall (or whatever other firewall you may use - some current generation antiviruses are using their own firewall and/or network inspection features)