Intermittent TCP/IP messages

Thanks for this. I have watched the video and amended the main loop to look like this:

void loop() {

  unsigned long now;

  //simualtes doing somthing
  strcpy(_msgTxt, "\0");
  for (int i = 0; i < 10; i++) strcat(_msgTxt, "0123456789");

  now = millis();
  //send the output and get any input
  if ((now - _laststep) > DELAY) {
    _laststep = now;
    Snd();
  }

It is better code, thanks, but it unfortunately does not change the issue with the TCP/IP.