I am new and I am using the dragino LG01 as gateaway. I have bought the thethinguno board to do some exercises.
I have already registered the gateaway in TTN. It is running and has the status connected.
I have uploaded sketch example (deviceinfo.ino of https://www.thethingsnetwork.org/docs/devices/registration.html
i have entered the keys etc. butI am not able to activate the device: Send join command failed, mac join otaa. Response not OK: no_free_ch.
How can I solve this problem?