All,
I got following message with the SolarEdge Integration in Home Assistant:
“Failed setup, will retry: 403, message=‘Forbidden’, url='https://monitoringapi.solaredge.com/site/…” the dots represent the site-code and API key ;-).
I found on a Facebook page (so all credits to that contributor) that I needed to login to the cloud environment and accept the new Terms & Conditions. The Facebook post seemed to indicate “all started working after that”.
Not for me. “long story short”, I had to completely remove the integration and re-add it again before things started working again.
I tested that my home IP was not banned, and API still was valid before removing the integration by using Curl from a linux box.
curl “https://monitoringapi.solaredge.com/site/Sitenumber-goes-here/energy?timeUnit=DAY&endDate=2026-03-21&startDate=2026-03-21&api_key=API-Key-goes-here”
Obvoiously, replace:
- Sitenumber-goes-here
- API-Key-goes-here
And that test gave a nice “StatusCode: 200” with the value of production March 21st 2026.
Hope this helps someone
Regards,