Server stops on minimizing

Hi!

I am new to unity and tried myself on network programming. Everything works fine, except this thing. I run the server in unity itself(ctrl+p) and the host outside of unity with my generated .exe file.
The problem is, while unity itself(and the server) are minimized the host freezes too. As soon as unity itself gets the focus, i can play with the server well.

Someone had this issue too? I´ve seen a video where this isnt so on youtube.

Enable “Run in background”. Build Settings , from the menu. That should do it.