Why am I getting a pop up on my phone that it cannot communicate with my Nest Hub Max?

[JohnF]

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Original poster: Cynthia Autry 

My Google will go through the whole set up and then at the end I get a pop up that I can not communicate to the HUB

[Sfaz]

You will need to do a factory reset .  I tried everything else and continued to get this pop up until I reset to factory settings.