My server doesn't appear on the server list after I opened ports.

[NeoRekt]

Dss0 There's a WAN Configuration section but it doesn't show any IP... Although there's a configuration for IPv4 Mapping, that I don't know if is relevant:

[Dss0]

NeoRekt strange settings, it doesn't allow setting any port. Maybe it opens all of them?

Try:

Mapping Name: T6 Server
WAN Name: leave as is
Internal Host: Select the pc that runs the server from the dropdown menu
External Source IP: leave empty

[NeoRekt]

Dss0 Done, I closed and reopened the server too

[Dss0]

NeoRekt still can't connect.. no idea. Maybe you're behind carrier grade nat..

[NeoRekt]

Dss0 Ohh damn. There's no way I can change that? Or I need to contact my ISP?

[Dss0]

NeoRekt well idk if you are behind cgn, if you are then you can call your isp and ask for a static ipv4 address.
To test it you can try this site: http://ip.bieringer.net/cgn-test.html

Test supported protocols -> Start initial test -> Set amount of connections to 1024 -> start normal test (will take 66s). Then post a screenshot of the results.

[NeoRekt]

Dss0 Here's the results

[Dss0]

NeoRekt lots of yellow means you're most likely behind cgn. you can try the test again with even more connections (it'll take a long time tho), if it ever turns red it's certain you're behind cgn.

[NeoRekt]

Dss0 Bruh. So I need to talk to my ISP and tell them to give me a Static IPv4 ? I believe I saw a setting to change it in the configs

[Dss0]

NeoRekt yes you need to talk to your isp. Ask for a static ip or just ask if they can give you a non-cgn dynamic one but it's questionable if whoever you catch on the phone even knows what that is.

[NeoRekt]

Dss0 K. Thank you so much for the help