UDP connection between MATLAB and MUSE isn't working ( Warning: Unsuccessful read: The specified amount of data was not returned within the timeout period.)

Hello, i am trying to establish a UDP/IP connection to a MUSE headband. I have already succeeded to make a TCP/IP connection, but I couldn't receive all the data i wanted (it seems that it could record only a small part of the data).

when i'm trying to make a UDP connection, i receive the following warning: Unsuccessful read: The specified amount of data was not returned within the timeout period.

the code is as follow: (irrelevant parts of the code are marked as ...)

 if true
   function muse_recorder_new1(file_name, duration, port, preset)
   ...

   tcpFlag = tbFlag && releaseYear > 2011;

   ...

   if tcpFlag
      udpserver = udp(ip,port,'timeout',30);
      udpserver.InputBufferSize = 5000;
      fopen(udpserver);
   while true
    if tcpFlag
        try %Catch Matlab error
           %a = fread(tcpServer, 4);  %How large is the package (# bytes)-- this is the line we used in TCP connection
           a = fread(udpserver, 4);  %-- this is the line we try to use in UDP connection        
           fprintf('\n a= %s \n',a);  % in TCP when we recieved data it printed whih kind of data was recievd (eeg/acc). in UDP we didnt receive anything at all.
        catch err;
            fprintf('\n error tcp \n');
            break
        end
        bytesToRead = double(swapbytes(typecast(uint8(a),'int32')));
        try %Catch Matlab error
            bytesData = fread(tcpServer,bytesToRead);
           % bytesData =  udpserver();

        catch err;
            break
        end
  if tcpFlag
      fclose(udpserver);
      delete(udpserver);
     % fclose(tcpServer);
     % delete(tcpServer);
  else
      serverSocket.close();
      serverSSocket.close();
  end

display('End of Acquisition')
end

thank you for helping,

Gal