Direct TCP/IP Create & Join Lobby LAN Help

Hello
It’s necessary to do a Multiplayer (networking) Be asked to help because I do not manage to do on
(Multiplayer) (direct tcp/ip) Create & Join Lobby LAN

they did but did not succeed
Be good enough to help you.
How to do image or video is good
For a Video tutorial on your bet, or image

I know That In my friends but be Please Help
Thank you