I have 2 first gen home minis that (on different days) claimed they had lost connection to the Internet. We power cycled everything and both devices then asked me to set them up using the home app. - so I presume they both lost their configuration settings on power-cycle.
The Home App finds the devices and lets me configure, but neither will connect to the WiFi networks (different locations). I’ve tried different WiFi access points too.
I tried doing a factory reset - same result.
I purchased a Nest Hub to replace the home mini, and this connected and works just fine - so I am sure the network is OK.
Could this have been a firmware update in the last week or so that has bricked these 2 devices? It seems very odd that they both died within 1-2 days of each other.
All the best,