LFS Forum - Loosing serial connection between InSim.NET and arduino

Hi Guys. I've tried to make an application using InSim.NET to redirect outgauge packets from udp to serial port connected with arduino but ive encountered a problem.

After a couple of seconds of correct transmission, connection is lost.
Numbers in console and display from arduino stop refreshing.
I don't know where the problem is. Please help

This is my c# code:


using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO.Ports;
using InSimDotNet.Out;

namespace dotnet
{
    
    
    class Program
    {
        static void Main()
        {
            TimeSpan timeout = TimeSpan.FromSeconds(10);
            SerialPort serialport = new SerialPort("COM2", 9600, Parity.None, 8, StopBits.One);
            
             serialport.Open();
             
            // Create OutGauge object with the specified timeout.
            using (OutGauge outgauge = new OutGauge())
            {
                // Attach event handler to packet-received event.
                outgauge.PacketReceived += (sender, e) =>
                {

                    Console.Clear();
                    
                    //String command = 'S' + speed.ToString("D3") + '\r';
                    int speed = Convert.ToInt32(e.Speed * 3.6);
                    int rpm = Convert.ToInt32(e.RPM);
                    String command = "S " + speed.ToString("D3") + "\r" + "R " + rpm.ToString("D4") + "\r";
                    Console.Write(command);
                    serialport.Write(command);

                    
                };
                outgauge.TimedOut += outgauge_TimedOut;

                // Start listening for packets from LFS.
                outgauge.Connect("127.0.0.1", 30001);

                // Stop program from exiting while listening.
                Console.ReadLine();
                
            }

            serialport.Close();
        }
        static void outgauge_TimedOut(object sender, EventArgs e)
        {
            Console.WriteLine("OutGauge timed out!");
        }

    }
}

And arduino code:

#include <Messenger.h>
#include <LiquidCrystal.h>

#define LCD_LINES 2
#define LCD_ROWS 16


Messenger message;
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void sendVersion()
{
  Serial.println(F("AD 01.12 ArduDash"));
}

void sendOK()
{
  Serial.println(F("OK"));
}

void sendERROR()
{
  Serial.println(F("ERROR"));
}

void setSpeedLCD(int speed)
{
  lcd.setCursor(0, 0);
  lcd_rjust_number(speed, 3);
  lcd.print(F(" km/h"));
}

void setSpeed()
{
  int speed = message.readInt();
  if (speed < 3 || speed > 230)
  {
    sendERROR();
    
    speed=0;
  }

  //setSpeedServo(speed);
  setSpeedLCD(speed);
  sendOK();
}

void lcd_rjust_number(int num, byte length)
{
  if (num < 10)
  {
    lcd.print(F(" "));
  }

  if (num < 100)
  {
    lcd.print(F(" "));
  }

  if (num < 1000 && length == 4)
  {
    lcd.print(F(" "));
  }

  lcd.print(num);
}

void setRPM()
{
  int rpm = message.readInt();
  if (rpm > 10000 || rpm < 0)
  {
    sendERROR();
    return;
  }

  setRPMLCD(rpm);
  sendOK();
}

void setRPMLCD(int rpm)
{
  lcd.setCursor(0, 1);
  byte progress_width = map(rpm, 0, 10000, 0, 10);
  for (byte x=0; x<10; x++)
  {
    if (x < progress_width)
    {
      lcd.print(F("#"));
    }

    else
    {
      lcd.print(F(" "));
    }
  }

  lcd.print(" ");
  lcd_rjust_number(rpm, 4);
}

void onMessage()
{
  switch (message.readChar())
  {
    case 'S':
      setSpeed();
      break;
    case 'R':
      setRPM();
      break;
  }
  Serial.flush();
}

void serialEvent()
{
  message.process(Serial.read());
}

void setup()
{
  Serial.begin(9600);
  message.attach(onMessage);
  lcd.begin(LCD_ROWS, LCD_LINES);
  
}

void loop()
{
  // put your main code here, to run repeatedly:
  
}