"Unable to connect to Adafruit IO MQTT" when following the official quick-start guide for the Arduino Nano 33 IoT

[ABJ98]

Describe the bug
My development board can't establish a connection to Adafruit IO when I follow the official quick-start guide (link) for the Arduino Nano 33 IoT, Arduino MKR WiFi 1010, and ESP8266 boards. Compiling and uploading the updated Wippersnapper_NoFS example sketch works fine on the Nano 33 IoT. Once uploaded, the board successfully establishes a connection to my home network. However, the board then fails to connect to Adafruit IO and the serial console outputs:

Subscribing to MQTT topics...
Running Network FSM...
Attempting to connect to WiFi...
FSM_NET_ESTABLISH_MQTT
Unable to connect to Adafruit IO MQTT, retrying in 5 seconds...

The device doesn't appear in the WipperSnapper dashboard. I already tried generating a new IO_KEY and used the updated value in the sketch with no success. I also updated the WiFi module firmware on the Arduino, but that didn't help either.

Arduino board
Arduino Nano 33 IoT

To Reproduce
Steps to reproduce the behavior:

1. Follow the official setup guide
2. Install the Adafruit MQTT library
3. Upload the Wippersnapper_NoFS sketch
4. The error pops up in the serial monitor

Expected behavior
The board should show up on the WipperSnapper dashboard

Which components are connected to your device
None

Screenshots
N/A

Desktop (please complete the following information):

• OS: macOS 11.6.4
• Browser Firefox
• Version 98

Additional context
Uploading to the Adafruit Feather HUZZAH ESP8266 didn't work at all, even though the guide suggests that it is a compatible device.

[brentru]

I've assigned myself and will take a look at the Nano33.

Uploading to the Adafruit Feather HUZZAH ESP8266 didn't work at all, even though the guide suggests that it is a compatible device.

Please use the WipperSnapper Firmware Uploader for the ESP8266 (https://learn.adafruit.com/adafruit-feather-huzzah-esp8266/using-wippersnapper), it needs to add your credentials to the board's filesystem prior to loading the firmware.

[aaron-hentschel]

I'm also experiencing the same issue as @ABJ98. Any news on a bug fix?

[brentru]

@aaron-hentschel Are you using the Nano 33 IoT as well?

[aaron-hentschel]

@brentru Yes, I am using a Nano 33 IoT.
I'm using Adafruit Wippersnapper library version 1.0.0-beta.40 and the firmware version of the ublox module on the Nano 33 IoT is 1.4.8.