(note;  not sure about hardware version;  I don't see a way to get that information;  it could be 1.6?  I've tied in an X55 in my garage as well)  Network has been stable for several years.

Yesterday, I was upgrading my network with a non-TPlink switch.   (I have two switches in my system tied together).  And unfortunately it made my Deco system unstable (alternating red, red-flashing, green repeating).   I rebooted each of the nodes and it didn't help.  So I put the original TP-Link switch back in and it didn't really help.

The instability actually goes beyond the wifi network making the entire network unstable.  I reset the "main" node and it put it into setup node and that helped settle the network down a bit.

Right now, I have no WiFi, the main node shows up as DECO_DCE7 in my wifi list, which I assume means that it's ready for setup.  The app right now isn't terribly helpful because it sees the main node in a setup state, and it marks the other 3 as "offline".

It's not a big deal to set it up again, but I don't see a way in the app to wipe it clean and start again from scratch aside from deleting the app.   Or perhaps there's a better way to get the system stable?

Any help would be appreciated.