TcpClient connection = new TcpClient(hostname, port);
NetworkStream stream = connection.GetStream();

thread = new Thread(ProcessStream);
thread.Start(stream);

private void ProcessStream(object stream)
{
    Stream source = (NetworkStream)stream;
    byte[] line;
    int count;
    const int capacity = 300;
    ReadState readState;
    while ((readState = ReadStreamLine(source, out line, out count, capacity)) != ReadState.EOF && _stopFeed == false)
    {
        if (readState != ReadState.Error && count > 4)
        {
            byte[] line1 = new byte[count];
            Array.Copy(line, line1, count);
            Process(line1); // return ignored in stream mode
        }
        else
        {
            ReadFail(line, count);
        }
    }
}