I have run a netstat -a -o -f - here is the output for the PID Sins is running under
 TCP    192.168.1.2:58506      38.98.152.153:7000     SYN_SENT        772
As I said, the out port keeps changing
[EDIT] After waiting a few minutes and trying again
TCP    192.168.1.2:58567      38.98.152.153:7000     SYN_SENT        772
I understand that it is picking a port on my machine to talk to the 7000 port, but I have no idea why it is being blocked....