@mortommy What type of unit is "sleep_seconds_between_measures"? Post the full code! Did you select the right type and clock speed when flashing the nano? 2.2.0 is an older version, current is 2.3.2, I suggest upgrade of all nodes and gateways to this latest standard.

ok, some news here: first of all I fixed my issue with the gateway disabling the debug as suggested here. I had anyway some messages lost. Looking at the mqtt broker I couldn't see any message telling me the gw was rebooting and not only messages from gw to sensor were lost also between sensor and gw. I tried to remove the decoupling capacitor and is everything working. thank you

What do expect? You can buy at least 4 or 5 for the price of an original one 😀

Juts to leave a record about the issue. I changed the GW radio module with a NRF24L01 + PA + LNA one, powered by the AMS1117 and the ugly fix. Everything seems to working fine now. Thank you to every one.

With an external regulator it has been running already for 24h :) thank you.

Yes this is a good explanation why not to pursue exchange in the forum.

@Tmaster You give each sensor a child id (0-254) in the node.