Dedicated server don't visible on server list and steam overlay

[Dispetcher]

Hi peolpe. I have a problem with dedicated server on linux (ubuntu 16.04). People can't see my server in server list (original browser -> favorite), and can't see it in steam overlay. I'l try everything. You all my last hope. ( -authkey is created to steamidfinder.com) (port are forwared on instruction from this [url]https://developer.valvesoftware.com/wiki/SteamCMD#32-bit_libraries_on_64-bit_Linux_systems[/url] )