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November 9th, 2019, 2:26 pm
* Abilene ** Abilene *
  • Joined: July 13th, 2019, 9:01 am
  • Posts: 2

So my last cook, the wifi quit working on my YS640s.

When I look on the FireBoard App it says “waiting on temperature reading” and is not showing my cooker available on wifi or Bluetooth.

When I start up the cooker I get the code “Communications Error: No response from host.”

Any idea how to troubleshoot and get the wifi back up and running?

November 10th, 2019, 11:33 am
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  • Joined: April 18th, 2014, 3:12 pm
  • Posts: 2408

Please send us an email to so we may properly help you.

April 30th, 2021, 7:29 am
* Abilene ** Abilene *
  • Joined: March 25th, 2020, 6:11 pm
  • Posts: 1

I'm seeing the same thing on mine. Is there an easy fix for this? Really hoping I won't have to replace the controller board again since I've already had to do this once after a failed software update.

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