Did u also forward udp in router?

The standard port 63392 uses tcp and udp

I don't really know how to forward, I'd love it if you can help though.

Update: It wasn't forwarded in the first place, forwarding didn't help.

Try disabling router and computer firewall to see if it gets any better.
If yes, one of them are blocking something

Quote from CyanOnur :

I don't really know how to forward, I'd love it if you can help though.

Update: It wasn't forwarded in the first place, forwarding didn't help.

Didn't read good thought u tried to set server up no port forwarding is needed when u just try to play the game but it seems udp is blocked.

Try unplug and plugin (reboot) all devices (modem router switch) etc

The issue is I don't have another router. I'll have to get another one I guess. Thanks for the help.

Sorry for bumping this topic, but i had the same today with my [DTC]Timeattack server.

My fix was to change the gameport number, and everything is fine now.