EACHEN eWelink wifi relay not working with HA

Hello, I try to connect an AECHEN wifi module controlling 1 relay for my garage door.

I have added the EweLink add-on to HA.

Already then, there is a discrepancy between the procedure which states that during installation I have to generate a long-lived access token, while with the latest version of HA, there is no field provided in the Ewelink add-on “configuration” tap to introduce such a token !??
Then, it seems that the integration works, as I can see the switch in my list of entities.
The first time I try to turn the switch ON it works but afterwards, all subsequent commands seem to be ineffective. No log errors anywhere.
The control of the switch via the Ewelink application works great.
Any idea?
Thanks in advance.

Hello veym,
Welcome the the Home Assistant Forum!

First off it is not clear what versions of what you are running, clarifying the system and style of Home Assistant you are running it on would help the people who would answer your question.

Perhaps read the FAQ over a bit and try to clarify and detail out your question, someone may have a better chance at helping you then.

https://community.home-assistant.io/t/how-to-help-us-help-you-or-how-to-ask-a-good-question/.