Custom authentication UserID and NickName not Set

hi, i setuped photon server v4 in my own server. i red this article to configure Custom Authentication hosted in my own web server. but in PUN (v1.66) after connect, in the OnConnectedToMaster callback, i checked Nickname by PhotonNetwork.playerName but it has not value!

Codes:

1. in the Photon.LoadBalancing.dll.config in server:

<AuthSettings Enabled="true" ClientAuthenticationAllowAnonymous="false">
    <AuthProviders>
		<AuthProvider Name="MyWebSite"
					AuthenticationType="0"
					AuthUrl="http://MyWebSite.com/api/account/authenticate"/>
    </AuthProviders>
  </AuthSettings>

2. in the PUN in unity test client:

        PhotonNetwork.AuthValues = new AuthenticationValues
        {
            AuthType = CustomAuthenticationType.Custom
        };
        PhotonNetwork.AuthValues.AddAuthParameter("userName", userName);
        PhotonNetwork.AuthValues.AddAuthParameter("token", token);
        PhotonNetwork.ConnectUsingSettings(Version);
...
public override void OnConnectedToMaster()
    {
        Debug.Log("UserId=" + PhotonNetwork.AuthValues.UserId+
            ", Nickname=" + PhotonNetwork.playerName);
     }

3. in the response of authenticate service in MyWebServer:
{"ResultCode":1,"UserId":"foo@gmail.com","Nickname":"bar","Data":{"lvl":0}}

Expected Result:

in the PUN OnConnectedToMaster in result of Debug.Log:
UserId=foo@gmail.com, Nickname=bar

Incorrect Result:

but it logs:
UserId=, Nickname=

Sorry for my weak english