server not responding

when somone tryes to conect to my dedicated server it says “server not responding”
i put the the port should be 27015 but when it starts it says that my ip is 192.168.1.***:27016
because of that i put port 27015 to end port 27020 when i port forworded
i can conect to the server myself but my friend can’t even if it is not a dedicated server they get “server not responding”
my brother maneged to get on the server for a short amount of time before he got kicked
the server von’t show up in the global server list but it soes show up in the lan server list
i have it set on internet is the serverproperties BTW

Can somone please help me??

Sorry for the bad writing, i am Norwegan.