Lightburn instaler to see if FTDI driver is installed

On Windows systems LightBurn offers an option of installing the FTDI driver at the end of the installation process. Select that option when installing to get the driver.

If you’re on Mac Apples ships a driver but it may not work and may also interfere with a separately installed FTDI driver. More information here:

You may want to consider using Ethernet for your connection instead of USB in any case.