So far my experience with the MEATER block has been a nightmare. I had to send the whole thing back as it had 2 bad probes. They replaced it so we'll see, but so far it's a big disappointment.
With the Block, key is having the block close to the grill, but within range of your WiFi. Also, make sure you have good batteries in it and that the probes are charged. Once used, clean the back end of the probe (the part with the number) with scrungie pad (those yellow sponges with the green abrasive backing). You want to make sure there is no soot or grime on it as it will affect proper recharging.
This was a brand new block and my Wifi is probably better than anyone elses on this forum. ..