I've a problem with the nodes activation.
The server receive only the Activation Packet but after that nothing.
The node is a ST-NUCLEO Board with a SX1272 adapter for lora.
In ABP Mode the server receive the data but I don't want to set every time the sessions keys.
It seems that the gateway doesn't send a confirmation message to the node because the trasmitted message counter on the gateway page on TTN increments the value when receives an activation frame
Help me please