Dedicated Server + Steam, Nothing Connection

Hello there, we are trying to run steam for the game we developed. Connection success to the server with steam turned off.

  1. Gives an error when you turn on the first server and connect.
  2. If steam turns on, nothing happens.

I uploaded a video: Unreal Engine Dedicated Server + Steam Not Working ! 4.20.3 - YouTube

I’m sorry for my bad english

Help me please…