Works here, for
# tcpdump -ui wlan0 host router.us.thethings.network
18:26:08.001044 IP raspberrypi.local.45469 > 40.114.249.243.1700: UDP, length 241
18:26:08.184125 IP 40.114.249.243.1700 > raspberrypi.local.45469: UDP, length 4
18:26:38.001642 IP raspberrypi.local.45469 > 40.114.249.243.1700: UDP, length 241
18:26:38.188597 IP 40.114.249.243.1700 > raspberrypi.local.45469: UDP, length 4
still getting updates on the API