Zolxys said:
2000 is a port that is commonly open by default in firewalls. It's used by certain VoIP technologies. But if it's open for you with just DMZ (no port forwarding rules) and you don't use any VoIP software on your computer specifically, then you must not have anything that's using it. In that case, go ahead and use that port.
Got it, although the symbol on utorrent didn’t turn green, on the 2 sites I tested it says I’m "connectable", so I think it worked.

Once you have it working, I suggest specifically forwarding port 2000 to your computer and turning off DMZ.

Also, in the IPv4 settings on your computer, the subnet mask should be 255.255.255.0.
Ok, thanks for the help.