Port Forwarding on T3200M

[wireless]

I recently had an issue with one of my STB and a tech was sent out to replace all hardware in the house; I guess the stuff I had was old. Previously I had port forwarding working on my old router/modem for several applications and now I cannot forward anything. How do I get port forwarding working again? I specifically asked when they were replacing the hardware if I would be able to keep forwarding ports and was told YES. Now I can't get anything to forward.


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