Bad news for you son, The problem your having isn't a port forwarding issue with your router, its a global wide EA server issue from lobbies
Though the game getting Dc'd mayben a port forward thing, your still fkd when it comes to the lobbies,,, heres my thread on it, you can keep up to date if you experience lobbie freezing
http://forum.madden-school.com/madden-general-talk-f51/madden-lobies-freeze-up-my-ps3-anyone-else-t10425.htm#102517