How do I disable the chime on Google Assistant speakers?

[JLS2020]

I have had a pair of Google Home Mini (gen 1) speakers, and a pair of Harman/Kardon Citation One speakers, for over a year, and never observed the following behavior: 

I just added a new pair of Google Nest Mini (gen 2) speakers, two days ago.  For two days now, every hour or two, these new speakers chime for no apparent reason.  Are they trying to tell me something, like they need an update?  Maybe my wi-fi is flakey, so these speakers are disconnecting/reconnecting?  Is there a pending message, that I need to acknowledge? 

In any case, I want to disable this chime, at least at night.  Can I do that with Night Mode, or Do Not Disable settings, or some such?  I have Googled these settings, but I am not sure they will do the trick. 

Has anyone else had this problem?

Thanks. 

JLS2020

[JLS2020]

BTW: I primarily use all my Google Assistant speakers for streaming music with YouTube Music Premium, using the app on my iPad.

Oh, and yes, I have unplugged them from power, plugged them back in, and the chime problem persists.

[Azarco]

Hi JLS2020,

Thanks for visiting the Community. 

Since this thread hasn't had activity in a while, we're going to close it to keep content fresh.

We hope you were able to get the help you need but if you're still having trouble, you might want to check out this link. If the issue persists, feel free to submit another post and provide as many details as possible so that others can lend a hand. Hope this helps!

Kind regards,
Alex