Users may be unable to PXE boot with the Dell Type-C to Ethernet dongle. The symptom encountered is that there is no PXE option listed in the F12 boot menu.
The solution is to set the system Fastboot to "Thorough" in the BIOS. You can find the Options at Post Behavior > Fastboot. For detailed instructions on entering and configuring the BIOS, reference your system manual available for download from the Dell Support website: https://www.dell.com/support/home .
The following additional configuration changes may be necessary to successfully PXE boot depending on the environment:
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