Problem Connecting PS3 (Army Of Two)

[Squid_uk]

Heys guys,

Been trying to play Army Of Two online using my PS3, the set up i use is connecting through my ZyXel Prestige 660HW-T1 wireless router, my internet connection works fine on the PS3 for downloading games, video, surfing the net etc, also when i use the network connection test all results succeed and UPnP is avalible also the NAT is 2.

When i strat up the game i have tried using private/public co-op and also quick match online, but it never seems to get past 'finding game to connect to' screen.

If i go back to the main PS3 menu and look at the players met section it show a players name met through Army Of Two with the date and time that i tried it.

I have also tried opening the port required following this guide http://portforward.com/english/routers/port_forwarding/ZyXEL/Prestige660HW-T1/Army_of_Two_PS3.htm the only problem i have is the modem will not let me open the port 3658 when i try saving the port setting i am given an error telling me that there is a duplicate port, even though it is the first i have entered. I also tried opening all the ports required for the playstation network found on the same site as above.

Could anyone help me with this?

[Squid_uk]

No ideas then?