Indeed. So, look for error messages in TTN Console: OTAA shows "Activation DevNonce not valid: already used". (Note that things are different in LoRaWAN 1.1; see the same topic.)
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Indeed. So, look for error messages in TTN Console: OTAA shows "Activation DevNonce not valid: already used". (Note that things are different in LoRaWAN 1.1; see the same topic.)