Yes, "accept new hardware devices" is enabled. And I've several times activated "accept new hardware for a while". Thanks

Thanks you Alain for your reply. But I'm struggling already a couple of days with it. And the next day the devices don't appear.

Recently I've installed my Raspberry with a fresh image and installed Domoticz with the latest version. I'm able to add SolarEdge hardware, but there doesn't appear any devices. - Wget https://monitoringapi.solaredge.com/site/<siteid>/details?api_key=<API-key> on the Raspberry give me the ...