I don't think you ever requested my networking checklist and did this on your own. Taking a
quick look at it, it looks like you did a good job. That would point to the most likely problem being
your router. Instead of DMZ, forward ports 13000-13003 as UDP to 192.168.0.169 and see if that
solves your problem. I have helped over 300 people get their system running and it always amazes
me how some routers just don't work correct for the DMZ.
If that doesn't help, I would be happy to take a look using Teamviewer. I am on EST. Just let me know.
73,
Mitch DJ0QN / K7DX