public async Task ServerOpen(int serverPort)
        {
            _isStopping = false;
            _socketTcpServer = new StreamSocketListener();
            _socketTcpServer.Control.KeepAlive = false;
            _socketTcpServer.Control.NoDelay = true;
            _socketTcpServer.ConnectionReceived += SocketTcpServerConnectionReceived;
            try
            {
                //start log session
                _logJson = new LoggingToTxt();


                //Enable tcplistener
                await _socketTcpServer.BindServiceNameAsync(serverPort.ToString());

                PrintServerSideMessage("Server started...");

            }
            catch (Exception e)
            {
                PrintServerSideMessage("Can't start server!\r\n" + e.ToString());
            }
        }
        public void StopServer()
        {
            _isStopping = true;
            try
            {
                //zamknij wszystkie sockety(muszą dostać informacje o disconnect)
                for (int i = 0; i < _socketsix.Count; i++)
                {
                    _dataReaderix[i].Dispose();
                    _socketsix[i].Dispose();
                }
                _socketsix?.Clear();
                _dataReaderix?.Clear();
                _socketsIpix?.Clear();

                ToLbConSockIp?.Invoke(this, new ListWrite(_socketsIpix));
                PrintServerSideMessage("Server closed.");
                _socketTcpServer.Dispose();
                _logJson = null;
            }
            catch (Exception e)
            {
                PrintServerSideMessage("Server error during closing." + e.ToString());
            }

        }