I am a beginner to Arduino development but have had some success with this brand new board. I have been using the MKR GSM1400 for a couple of weeks now. It was connecting to GPRS fine and sending data to the IOT cloud without problems (when connected to USB, not battery), but all of a sudden, I am unable to connect to GPRS any longer when connected to USB.
Here is the relevant output on my Serial Monitor (I have redacted the device id and thing id from this log on purpose):
[ 1987 ] ***** Arduino IoT Cloud - configuration info ***** [ 1988 ] Device ID: [ 1988 ] Thing ID: [ 1988 ] MQTT Broker: mqtts-sa.iot.arduino.cc:8883 [ 14555 ] SIM card ok [ 14555 ] Connecting to Cellular Network [ 23871 ] Sending PING to outer space... [ 28894 ] GSM.ping(): -2 [ 28894 ] PING failed [ 28894 ] Retrying in "500" milliseconds Make sure the antenna is connected and reset your board.
Any suggestions to getting back GPRS connectivity?