Netgear Router woes?

[avant_tard]

Hello all! I played on this server back at launch, quit for a couple months, and am now trying to play my old toons again.

During the break, I switched to a Netgear modem/router, model DGN1000. Has anyone used or is using this router that can help? I can get as far as character select, but when I try to enter the world I immediately get the black SERVER IS NOT RESPONDING screen. some research has led me to believe it is a router firewall or port forwarding issue, but I cannot, for the life of me, figure out the setting that will make this work!

Any kind of advice would be greatly appreciated.