My board (Leonardo) connects with the same cable to a desktop computer (Windows 7, Chrome), but when connected to a laptop (Windows 8, Chrome or Firefox – exact details attached), the board is not automatically detected.
I have tried clearing the browser cache and restarting everything. I have also tried downloading and running the ArduinoCreateAgent multiple times. I have admin access.
In Firefox, I get stuck with a 404 error when trying to get the certificate (attached). I have also tried Firefox Private browsing.
In Chrome, I reach the successful install page (attached), but then the board is still not found (attached).
I have tried connecting via all of the USB ports.
A debug console screenshot is attached.