NetworkServer.DisconnectAll

Description

Disconnect all currently connected clients.

This can only be called on the server. Clients will receive the Disconnect message.

using UnityEngine;
using UnityEngine.Networking;

public class Example : MonoBehaviour
{
    enum GameState
    {
        kInit,
        kStart
    }
    GameState state;

    public void Update()
    {
        if (state != GameState.kInit)
        {
            if (Input.GetKey(KeyCode.Escape))
            {
                Debug.Log("Disconnecting all!");
                NetworkServer.DisconnectAll();
                Application.LoadLevel("empty");
                state = GameState.kStart;
            }
        }
    }
}