I forwarded my ports for UDP but my friends tell me they still cannot connect to my server. I also allowed it through my firewall. How can I fix this?
Here's a picture of what I have in my router: I also tried TCP/UDP but I read somewhere that it's supposed to be UDP? Can someone confirm that?

You will want to also factor in firewalls, and possibly even anti viruses.

in extremely rare cases the modem (If you have one) can also have some defenses of its own.

Don't know if the game is TCP/UDP but if you still cannot host while adding that rule to your router then I'm not sure as to why other than the above.

One thing I find odd (That I noticed) however is there is no specified local IP in what your using to forward that I can see - if that's unblocking the ports on a firewall you need to forward for the router via a browser.
Edit: Never mind I just realized you specifically stated router.

nilanthanimosus wrote:You will want to also factor in firewalls, and possibly even anti viruses.

I already allowed rules in my firewall to allow the program. - However I noticed in my firewall I can allow a rule for specific ports instead of specific programs so I will try redoing my rules for it as so.

nilanthanimosus wrote:Don't know if the game is TCP/UDP but if you still cannot host while adding that rule to your router then I'm not sure as to why other than the above.

From what I've read it is UDP

Alright so it had to do with my firewall. This was enabled by default and when I disabled it I could finally host.