Might it be that the gen24 per default talks on https?
You might need to check also that the service account is enabled.
I made a change to the proxy that is can be configured to use https.
Can you try if this solves it for you?
By service account do you mean technician account or is there actually an account called service?
The technical account
The technical account and try with https
An update if someone comes here looking for a solution to curtail generation whilst being on DNSP flexible exports, I’ve taken the work Christian has done and adapted it for the Gen24 inverters.
In my particular use case, flexible exports on Endavour network are minimum 5kw and max 10kw. I’m on Amber and have switched off smartshift to control the battery through HA. Fronius expects the curtailment control to come from either the DNSP or VPP and ignores the limit set locally. Only real change to Sergio / Christians code is the handling of the login to suit Gen24 inverters.