I've successfully got a MKR1300 sending data to The Things Network via a Things Gateway. For testing purposes, these are quite close to one another- maybe 10 feet apart. I am using the LoRaSendAndReceive example sketch in the MKRWAN library.
I have been trying for several days now to get downlink data from TTN to the MKR1300, but the messages are never received. The sketch reports back "No downlink message received at this time." I know there is uplink data being received, and there is downlink data queued to send, but it never is read by the MKR board.
After poking around through the forum I found a few similar posts, but no answers on how to solve this problem. Does anyone have any insights?