It's probably not a great idea to have all of your firewalls turned off. That aside, when you say "can't open ports" am I assuming you tried manually opening them and it didn't do anything? You should be opeing ports 2300 2301 and 2302 on TCP and UDP and forewarding them to your computer (server?). Having a dynamic IP might make this more complicated, especially if you reboot your computer frequently.
Edit: you will also need port 25444 for unturned.