Nano 33 IOT constantly disconnecting and reconnecting to serial port

Official Hardware Nano Family Nano 33 IoT
1

My Nano 33 IOT is constantly disconnecting and reconnecting to the serial port. It is also not connecting to WiFi. It has the latest firmware (V1.5) and was working but now won't connect to WiFi.

2

Hi @mdalfonzo

Constant disconnecting and reconnecting sounds like the SAMD21 watchdog timer has been activated.

Are you using the Arduino Cloud?

3

yes

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Hi @mdalfonzo

You should be able to get the board to enter bootloader mode by double tapping the board's reset button two times in quick succession. This will prevent the board from continuously resetting and allow you to upload, although you'll most likely have to first reselect the bootloader's COM port in Arduino IDE's Tool->Port menu.

To turn off the watchdog timer in your code, try setting the second parameter of the Arduino Cloud begin() function to false:

ArduinoCloud.begin(ArduinoIoTPreferredConnection, false);
5

Setting the second parameter of the Cloud.begin() did the trick. It's connecting and working now.

Thanks.

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