Cannot connect older Play:3 and Boost items to S2 app

I have four Play:3 speakers and a Boost that have been working fine for years. Recently, I upgraded the app to the Sonos 2 version. Unfortunately, the new app does not see any of my speakers nor does it see the Boost. I have tried executing a factory reset, as recommended on a number of sites, on both the speakers and the Boost. In each case, the S2 app reports that the item has been successfully set up, only to have it lost as soon as go back to the main screen. It remains lost when I restart the app and when I restart the speaker. I have gone through the setup multiple times, trying to set up everything when they are near my wireless route, with no luck. When I plugged a speaker into the network via an Ethernet cable I was able to retain the settings, but as soon as it was unplugged they were lost again.

My network uses a password to connect. Could it be that the S2 app needs that password even though it is on my phone, which is on my network? I can’t even go back to the S1 app as it says that all of these items will work under S2 and not let me bypass this. So, after two days of working on this, I now have six very expensive bricks scattered around my house instead of a whole house sound system. My apologies for the rant, but this is very frustrating! Any help is appreciated.