I'm getting this error below, any ideas? Thanks!

No connection could be made because the target machine actively refused it

Exception thrown from line 127 in refreshToken() method in ET_Client.cs.

string json;
using (var streamWriter = new StreamWriter( request.GetRequestStream() )) {

Networking guys said it isn't connection through proxy and should be.

[SocketException (0x274d): No connection could be made because the target machine actively refused it] System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) +208 System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception) +464

[WebException: Unable to connect to the remote server] System.Net.HttpWebRequest.GetRequestStream(TransportContext& context) +6541489 System.Net.HttpWebRequest.GetRequestStream() +13 FuelSDK.ET_Client.refreshToken(Boolean force) +341 FuelSDK.ET_Client..ctor(NameValueCollection parameters) +2035 TheDreamProject._default.btnSubscribe_Click(Object sender, EventArgs e) in d:\FuelSDK-CSharp-Dot9.zip\FuelSDK-CSharp-Dot9\TheDreamProject\TheDreamProject\default.aspx.cs:30 System.Web.UI.WebControls.Button.OnClick(EventArgs e) +9633194 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +103 System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +35 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1724


1 Answer 1


I don't believe your error is related to the SDK. These may help:



  • It was issue with how our internal network handles SSL connections. Running Fiddler fixed the issue.
    – Gerard
    Feb 24, 2015 at 3:29
  • OK, so when I connect from outside my company network, I'm able to get the connection. So this brings us to the next question. Am I able to configure a proxy in FuelSdk or do I need a firewall hole? If a firewall hole, what port?
    – Gerard
    Mar 3, 2015 at 6:25
  • Can you post the line of code receiving this error so we can see what you're doing? Mar 3, 2015 at 14:19
  • added code, think HttpWebRequest request needs to use corporate proxy.
    – Gerard
    Mar 4, 2015 at 23:37

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