I also have a netgear router. Before i switched from my old one, My ports worked perfectly, i could host more then one server. But now, when i switched to Net Gear I can only host one server. When i try to host 2, both servers do what your server does, the "Sending punchpacket" loop. And when i close a server the server still appears on the server list, but has the punchpacket loop. I suspect its the router, or the settings you have on it.
