Serial Port Interaction with web form issue

This question may be a bit ambiguous, but I can't seem to determine where I've gone wrong.  Basically I have a web application that I need to communicate with a Serial Port attached to x computer (where x computer has the app running in browser).

In the page I tried to do something like this, but all it does is crash the webService:
static System.IO.Ports.SerialPort port;

        protected override void OnInit(EventArgs e)
        {
            port = new System.IO.Ports.SerialPort();
            port.DataReceived += new System.IO.Ports.SerialDataReceivedEventHandler(port_DataReceived);
            port.PortName = "COM1";
            port.BaudRate = 9600;
            port.Parity = System.IO.Ports.Parity.None;
            port.StopBits = System.IO.Ports.StopBits.One;
            port.Handshake = System.IO.Ports.Handshake.None;
            if (port.IsOpen)
            {
                port.Close();
            }
            port.Open();
            base.OnInit(e);        
        }

        void port_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
        {
            string input = port.ReadLine();
OR
            string input = port.ReadExisting();
            // Now do something with the string retrieved
        }

This is not working, I am not getting any exceptions, either the app keeps running, never firing any event, or it crashes the webService...  Insight anybody?Start Free Trial