I finally managed to turn on the communication with the thermostat. I don’t understand, this happened on its own two days after several tries that didn’t work. It lasted a week, everything was working fine. I saw the temperature of the thermostat with the M1PNAV and I had access through the Ekepad application. My comfort and economy modes were working in the good morning and good evening tasks. But since I put the cover back on the M1XSP, I have no more communication with it. At school, I have two in test and they do not communicate with their respective M1.
I do not know what to do.