No more message on Sigfox backend when sending with S2-LP_SigFox_DK-GUI
Hi,
Three weeks earlier, I connected for the first time my STEVAL-FKI868V2 to the Sigfox backend and used the S2-LP_SigFox_DK-GUI (v.1.7.0) tool to send test messages to this Sigfox backend. Everything worked perfectly.
Now since 6 days I try again to send test messages with this tool, but nothing is received on the backend.

What I already tested:
- See if the token was still valid (-> yes it was).
- Try to send a message by command line and by pressing the button, as proposed with the tool (-> error returned but still no message on the backend)
- See if the SPI communication was working with the S2-LP (-> yes it was)
- See if the power supply voltages were good (-> yes they were)
- Contact the Sigfox operator in my country (-> it's not a connexion problem)
- Try to send a message in different places (-> still no message on the backend)
I don't know what to do, where the mistake can be, and if this problem has already appeared to other people.
I hope someone here can help me.
Laurent
