Unless I am completely wrong, I am almost positive that lines starting with "<!--" and ending with "-->" are comment lines. Meaning that they are completely ignored as if they weren't even there at all. So, changing anything inside them has absolutely no effect on the config.
The settings here:
Code:
<!-- Only specify these two if you really think you need to. -->
<!--<address>75.184.73.187</address>-->
<!--<localaddress>192.168.5.52</localaddress>-->
are the same as saying:
Code:
<!-- absolutely nothing here-->
You need to explain your network setup further. If you are using a router, and have all of the right ports forwarded (7000-7100 and 9000), then you shouldn't have any issues at all with this. However, if you are using some odd setup, then that is probably where your problem is. I would guess that you cannot connect to any other servers on that second PC either.
Trust me, there is 99.9% chance that you DON'T need to set those settings and by setting them, you are messing it up.