I had a similar problem and tracked to the extra data element “temp” sent in the Stat Interval datagram.
The SX1302 packet forwarder measures temperature to calculate RF parameters and also forwards this temperature.
From your log
JSON up: {“stat”:{“time”:“2020-11-09 15:40:51 GMT”,“rxnb”:0,“rxok”:0,“rxfw”:0,“ackr”:0.0,“dwnb”:0,“txnb”:0,“temp”:0.0}}
Another point. Since the temperature is Zero, i am assuming you don’t have a temperature sensor on the board. When you recompile the program I would set the temperature to say 20C.
I would also recommend you download the SX1302 UDP packet forwarder from the gateway manufacturer’s web site. If it is RAK, I know they have addressed the temperature issue.