Just a note to say me too. I have had a functioning somfy (tahoma) integration for months, and this happened once before but I don’t think I realised the cause last time, it just fixed itself. But this morning, I also have my connexxion hub with a red light on, and digging through logs (and verifying via the somfy developer web page), I am receiving: HTTP/1.1 500 Internal Server Error
I believe it will ‘fix itself’ if you wait, but I do wonder what triggered this? I did an update to Tahoma last night via HACS, but was interrupted and forgot to restart my home assistant… I notice in the home assistant logs, when it fails, it retries. I wonder if that series of retries are fast enough to trigger the rate limit being exceeded if your authentication fails for some reason.
Sorry, I cannot recall how long I had to wait, and last time I believe I left home assistant alone and approximately the next day, I started troubleshooting. I used my mobile phone / somfy app on my mobile data network to make sure I was on another IP, and that fixed it. This time, trying the different IP (via my mobile network) has not helped, so maybe it is just time…
Check the breaking changes 2022.6 release notes: Somfy shut down the API for the old Somfy cloud integration and you should switch to the Overkiz integration for Somfy: