Hi @Eric_Bouxirot,
there were some posts in the past where people had the feeling that the WiFi communication sometimes hangs.
( Wio Terminal App (rpcWiFi lib) sending telemetry data to Azure Storage Tables stops working after many uploads ).
Unfortunately it seems that Seeed actually isn’t investing much activity in this matter. I hope that they come back to work on this soon and I would be happy if you could find the reason for this issue.
In my applications I could use the watchdog to come out of the unresponsive states.