Title pretty much says it all. The server won’t show up on the master server list, only the LAN list. I’ve port forwarded all the ports you’re supposed to:
UDP Any -> 1200
UDP Any -> 27000-27014
TCP Any -> 27015
UDP Any -> 27015
TCP Any -> 27020-27050
UDP Any -> 27020
Any help/guesses is very much appreciated.
Sv_lan
Yes it’s stupid but it happens 
sv_lan 0 in Dedi console does nothing. 
You’ve got to specify this in the server.cfg.
You simply add this line:
"sv_lan" "0"
Little backstory: Was working fine maybe 1-2 weeks ago. “sv_lan” “0” has always been in the server.cfg
Edit: Problem fixed, was forwarding to the wrong IP. Silly me.