Well, for me Alexa fails once a week. or more often.
Personally I think that is not a good service.
Today (Monday 16th) The Germany server is offline..
https://support.zwave.eu/status/
but I am still connected to it ! (it is not working) sudo netstat -np 78.46.43.211:22
But I go to Management-remote access-Enable remote access.....
Turn it off, then re-enable it. and Alexa now works. Now via Switzerland 46.20.244.72:22
Owner of Alexa app and Remote Access is Z-wave.me
Is it possible to get these apps to re-connect to a working server when one of them goes offline.
A suggestion that might be a high priority request.
Otherwise I think z-way is getting better.

Thanks
Micky
Raspi 4 - (Buster - 32 Bit) Zwave Version 4.1.4, Raz 7 Pro, Serial API Version: 07.42