TCP: 80, 443, 9988, 20000-29999, 22990, 17502, 42127
UDP: 3659, 14000-14016, 22990-23006, 25200-25300

If you are playing on PS3, please enable the following online ports on your connection:
TCP: 80, 443, 9988, 10000-19999, 17502, 42127
UDP: 3659, 14000-14016

If you are playing on Xbox 360, please enable the following online ports on your connection:
TCP: 53, 88, 3074
UDP: 53, 88, 3074

For specific instructions on how to open your ports, please visit http://www.portforward.com/ [portforward.com] or contact your router manufacturer.