I can't access youtrack from outside my local network

I'm running youtrack at my custom port (25226), port is allowed as inbound rule in windows firewall and correctly forwarded from my router. When I testrun other services (like windows IIS) on that port, everything works fine, so port is not blocked and server is of course available.

But when I run Youtrack I can't reach it from outside my LAN. I've changed the port and specify correct BaseURL (http://x.x.x.x:25226 where x.x.x.x is my public IP) 

How do I make it accessible from internet?