Google Nest Community

No, it's not the power cord, it's a switching power supply card. I gave the model number but its crypted. https://fccid.io/MSIP-REM-AIL-7############

Switching power supplyModel:7############

I was also experiencing the same thing with my google home max. Fortunately i find another one and change a power card. It resolve the problem.I can make a howto but im not sure the card is for sale separatly...

You should try to reset the configuration with the little button behind the speaker.