What to do with so "unknown" or duplicated devices

[Eastend135]

There are many "unknown devices and duplicate devices with the same name showing up in Google Home Wifi.  By reading other posts, I understand these devices might have connected to the router in some way that makes Google Home they are different devices.  I do hope that in future update Google can figure out to clean this up.  In the mean time how do we get rid of them?

[olavrb]

There's no way to get rid of them one by one. They should disappear after a timeout, I think 60 days. Else your only option is a full factory reset of Nest Wifi and setup from scratch.

One thing you can do to prevent more of them to appear is to make sure MAC randomization is disabled for your client devices (Windows, Mac OS, iOS, iPadOS). Do a quick Google search to find out how.