TCP/IP Connection refused

I have server/client application. Server generating random number and sending it to client via tcp/ip. The server side code is the following:

    tmr = timer('ExecutionMode', 'FixedRate', ...
    'Period', 0.2, ...
    'TimerFcn', {@timerCallback});
    start(tmr);

where the function is:

    function timerCallback(hObj, eventdata)
             tcpipServer = tcpip('0.0.0.0',57000,'NetworkRole','Server');
             fopen(tcpipServer);
             mean = rand(1)
             fwrite(tcpipServer,mean,'double');
             fclose(tcpipServer);
             clear all;
    end

The client side code where the number is read is following:

    tcpipClient = tcpip('localhost',57000,'NetworkRole','Client');
    fopen(tcpipClient);

    while (1) 
       try
          number = fread(tcpipClient,1,'double');
          pause(1);
       catch
          fclose(tcpipClient);
          display('Read error');
          clear all;
          pause(2);
          tcpipClient = tcpip('localhost',57000,'NetworkRole','Client');
          fopen(tcpipClient);
       end
    end

This code runs for several hours, after which at client side I get the following error:

Unsuccessful open: Connection refused: connect

and the process stops.I run this code several times and the error is remains but the run times (more than 2 hours) are different.

Answer 1

[Garabani]

have you ever found the reason? I am having a similar issue but for sending webcam video from server to client.