You should check the ports of your router, if this doesn't solve your problem, please respond to that topic.
You should check the following ports on your router:
If you are playing on PC, please enable the following online ports on your connection:
TCP: 80, 443, 9988, 20000-20100, 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, 10000-10100, 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/ or contact your router manufacturer.
