Devices not on same Wi-Fi says Home app

[BasikBlack]

Can someone please tell me why I go into the Google Home app and half the time most of my devices read an error that says it's not connected to same Wi-Fi and so may not display? I just scanned for devices and got my Chromecast downstairs. I have 4 Nest audio speakers, 2 Nest mini, 2 Google TV dongle, 1 Chromecast, 1 Android TV dongle, 2 Smart TVs, 1 Nest hub, 1 learning thermostat, 1 Nest video doorbell and I'm sure I'm forgetting something here but I'm a packed Google household. I've included a screenshot of the issue. 

I'm on my Pixel 8 Pro and have all the latest updates for Android and my apps. I'm the only person awake at the moment. I've double checked everything. 

Help!? 

 

[MplsCustomer]

@BasikBlack 

When you get this message, is your phone connected to the same Wi-Fi network as your Nest speaker?

[Alex_S]

Hi everyone,

Thanks for checking on this, MpIsCustomer.

BasikBlack, in addition to what MpIsCustomer asked, are you using a dual-band router? If yes, on which band are your Google Nest devices connected? What is your usual distance to the router whenever you’re getting this message on your phone?

Regards,
Alex