Thanks for your input @d_v.
Translation from Google:
The settings of HD 3000 inverter (without display) cannot be changed by the consumer. You are always dependent on the installer who of course charges for this.
As owner and user, I certainly want to be able to change the simple settings of the WiFi or LAN settings. Asked this at the Solar Edge help desk:
Thibault -SolarEdge Support Team said:
Best,
Unfortunately, as end users, you cannot set the WiFi connection of your inverter, for this you must contact your installer so that they can set this up for you.
Too ridiculous for words. In addition to the end user, I am also the owner.
So for changing the WIFI password because I have now received a new modem from Ziggo, I always have to get an installer to pay.
Can’t be true but it is anyway. So very poor service and product.