Problems receiving Downlinks bigger than 51 Byte using LMIC library

(Wanssemd) #1

Hi everyone,

I am using a Adafruit Feather M0 as Node. I am trying to send data packages bigger than 51 bytes while using SF7. Since the LMIC library is limited to 51 byte payload I followed the steps described here to make it work. These changes allowed me to send packages bigger than 51 byte to the network server.

But when I am trying to echo these messages back no downlinks are received by the node. I verified that the downlinks are send by the application and that they passed the gateway. Both works correctly so the error most occur at the node.

Any idea how to fix this issue?