The rest of my system works fine. I have WiFi computers, printers, and Insteon home automation network and they're all just fine. It's only the SONOS network that vaporized....
1) Where does SONOS store the network map as to where the devices IP addresses are? Where does SONOS store the path to my NAS drive for music library. If I unplug one of the SONOS devices, does that kill the whole network (e.g. SONOS-1 moved outside, etc?
2) It also lost all the login info to Pandora and Spotify. So, I had to delete and re-install the Android apps and Windows s/w and re-link the logins to music services.
Best answer by Stuart_W
You can loose all that by Factory resetting the players and adding them back as a new system.
Factory reset should be a last resort unless directed by Sonos or one of the more knowledgeable posters.
None of the service information, Sonos configuration, music indexes or anything is stored on the controllers for phone, tablet or Mac/PC. But it is always a good idea to ensure that controllers and Sonos player/units are running the latest software.
The OP says they installed a new Linksys router but I'm not that clear if the correct procedure was followed for entering new Wi-Fi credentials.
I would be inclined to telephone Sonos who I'm sure will be able to help