Hi. I am just starting to play around with LoRa and LoRaWAN. I set up my own LoRaWAN gateway and I can see it is online on TTN. I am having problem bringing up LoRa-E5 dev board (Node) through AT commands. I followed steps on the Seeed’s website but when I send command AT+JOIN, I get, ‘Join failed’. I tried to see manually if everything matches on device and on TTN device, and it appears fine. Now, I am not sure how do I troubleshoot this. Is there a way to monitor the communication? I don’t see any updates on the Gateway at TTN.