Hello everyone,
after reading this topic with 97 messages, I wanted to summarize: the --ws-port=443 for Alexa has changed to --ws-port=8xxx, and the --http-port apparently has as well, but this is not yet known. Since this is necessary for device discovery, port 80 no longer seems to work. deCONZ v2.32.x have many changes to http(s)/ws and should not be used by inexperienced users. For a quick solution, deCONZ v2.31.2 with adjusted ports should be used. Port forwarding (nginx) is not necessary, but it’s not a problem either.
Alexa’s ports have been changed and dresden elektronik can’t do much about it at the moment. Alexa works very well for me because I’ve been using --ws-port=8xxx for a while now. So the Hue API v1 is still supported, and I hope it will be for a long time.