Socket opens then immediately closes

I am trying to use websocket-sharp to interface with a pro-presenter instance as a windows form app. i was able to get a similar project working with JavaScript. My .net version connects to the socket and runs the OnOpen event then immediately runs the OnClose event. Below is my code block. Where am i going wrong?

         using (WebSocket ws = new WebSocket("ws://" + config.ComputerIP + ":" + config.Port + "/stagedisplay"))
        {
            ws.OnOpen += (sender, e) =>
            {
                // send connect string
                ws.Send("{\"pwd\":\"" + config.Password + "\",\"ptl\":610,\"acn\":\"ath\"}");
            };
            ws.OnMessage += (sender, e) =>
            {
                    slide.ProcessMessage(e.Data);
                    CurrentSlideLbl.Text = slide.CurrentSlide;
            };
            ws.OnClose += (sender, e) =>
                CurrentSlideLbl.Text = "reason:" + e.Reason;
            
            ws.OnError += (sender, e) =>
                CurrentSlideLbl.Text = "Socket encountered error: Closing socket" + e.Message;
            
            ws.Connect();
        }

Start with the WebSocket construction, event handlers, and ws.Connect() call shown in the issue, then inspect the OnClose and OnError values. Reproduce the connection against the stated ProPresenter endpoint and determine why it closes immediately; done means the cause is identified and a reliable connection behavior is demonstrated.