This error is triggered when the board's WiFi module has an outdated firmware, and happens in the last step of the "Add a new device" routine.
It is a known bug and our development team is working on it. For now, we can offer you a workaround to finish setting up your board so you can continue working in your project.
We will guide you in order to manually update your board's firmware to version 1.4.1 so this error is avoided.
First, you will need to download the Arduino IDE hourly build. To do this, go to the Arduino software download page and scroll down until you see the "Hourly Builds" section, then click on your system to download the corresponding version fir your PC.
You will be taken to the "Donate to Arduino" program section, where you can choose whether to
Just downloadthe program or
Contribute and download. Once you have chosen your preference, the download will start automatically.
Please nota that some systems understand the download as a pop-up window so some add blockers can be interfering.
Extract the folder and run the IDE. You might need to allow access from your firewall.
Tools > WiFi101/WiFi Nina Firmware updater.
Once there, click on
Open Updater sketch, this will open an Arduino sketch, the IDE needs your board to be running this in order to update the module's firmware.
Upload this to the board(s) that need a firmware update.
Once the sketch is loaded, go to the Firmware updater tool again.
If you cannot see your board in the list, click the
Select the boar to be updated (make sure the selected one is the correct one, both in model and port).
If you want, you can
Test connectionto make sure the sketch is uploaded and working successfully.
Next, choose the latest available version of the firmware, in this case version 1.4.1, then click on
This process may take some minutes.