Google WiFi disappeared from Google Home APP

[dbisciot]

My Google WiFi mesh has 5 devices and dozens of devices connected.  They are all seeing and connected to the wireless network.  My problem is that the 5 Google devices have disappeared from the Google Home App.  I have reset and power and tried adding the devices back to APP without success.

Do I have to Factory reset the devices to get them to show back in the APP?  Can I uses the same SSID and Password to avoid reconnecting the dozens of devices around the house?

[olavrb]

Make sure you're logged into the Google Home app with the Google account that set up the Nest Wifi units initially, or with a Google account that has access to the Google Home home where the Nest Wifi units were added to:

• https://support.google.com/googlenest/answer/9155535?hl=en

Try to force close the Google Home app, delete app cache and open the Google Home again. If that makes no difference, try to uninstall the Google Home app and reinstall it again; Google Home data is tied to a Google account and will come back once you log in.

I've read in the past that performing a Google account "security checkup", which can make you remove "Nest" from "Third-party apps & services" ( https://myaccount.google.com/connections ) can cause devices to disappear from the Google Home app. If you recently did a Google account security check; this could be related.

• https://www.googlenestcommunity.com/t5/Nest-Wifi/x/m-p/198228#M20890

Last resort is to factory reset all Nest Wifi units using the physical button ( https://support.google.com/googlenest/troubleshooter/13816290?hl=en ), then set up the network from scratch ( https://support.google.com/googlenest/answer/7183148?hl=en ). If one reuse the network name (SSID) and password all devices will reconnect automatically.