source ip?

[Gandalph]

Are you behind a router? As in your IP address is 192.168.xxx.xxx? If so, it gets more difficult.

[Keego7237]

thats not what my ip starts with, but i am behind a firewall

[capnq]

According to this thread (link), you need to make sure that Ports 6716 and 6720 are not blocked.

[DirectorTsaarx]

So what is the firewall using as the "outside" IP address? (I'm assuming you have control over the firewall, of course...). That should probably be the source IP you use.