@Talon61 I expect that resetting the main Deco caused the loss of your whole configuration.

I assume it is too late to promote another Deco as main, as this requires the main to be operational.

I believe you have to remove your network from the app and recreate it.

I am not convinced you can achieve that while your ISP is down, and, even so, if your wifi network will become operational until your ISP is up.

Is your Deco configured in AP or in Router mode?  I believe it behaves better in Router mode when the ISP is down.

  @yves_b 

The main Deco x90 is in router mode. 

You are correct in that I basically had to remove all units, satellites and main router, and basically start over. It took me a couple of hours and some cussing, but I am back up and running. I reset all devices and was able to just name the new network the same as the old with the same password which allowed all my connnected devices to find the "new" network, connect, and get on with business. 

During this process, my ISP connection also came alive. So, it appears this was a Deco issue and not a ISP issue..at least I think. 

I'm going to keep my ISP tech appointment next week just to make sure this doesn't happen again. 

I live in a remote area, and my choices of ISP's are limited to small local players that use over the air "broadband". Most are hard to get a good connection. 

I think I'm headed to Starlink. Tired of the local connection issues with the transmitting towers. Four of my five neighbors have all migrated to Starlink and they are very happy with the service. 

Now, I just have to figure out how to use my Deco x90 rounter with Starlink. I belive I need some sort of adapter. 

Thanks for the help.