Can you change your boot drive order? It is looking at the SSD first rather than your USB drive. Or is there an option to instigate a boot menu on startup so you can choose the boot device? I have found in the past (on some devices) if you even disable the SSD for a boot device so it only sees the USB - then when installed re-enable the SSD.
I ran into the same error with my Nuc recently. Once I reset the bios settings (F9 key) and followed the recommended settings on the instruction page, my USB drive was recognized and the install worked.
This might webpage might enlighten, potentially relevant section quoted below:
“Start PXE over IPv4” – What does it mean?
When you are attempting to start your computer and “Start PXE over IPv4” pops on the screen, it means other boot devices, like the hard disk, were not available to boot from.
In other words, the storage partition the computer normally uses to boot the OS is probably malfunctioning or it’s not properly configured. Chances are it likely has to do with a wrong or reset boot priority order.
No, David, I did not. I bet and win. Probably not the best option, as many information available for a pleasant experience with Roon features but that’s me always improvising