Hi
The new app gives up too easily looking for the Sonos system on the WiFi and then does not seem to clear the cache or local memory and do some sort of reattempt.
The problem is you get scary suggested actions like upgrading the speakers and creating a new system. I know these are incorrect suggestions because if I 'force stop' the android app and try again it ultimately works ... not always after the first retry.
Sonos mesh network used to be bullet proof in terms of reliability. I understand the security was not.