A network-connected boot device connection refresh system includes a computing device that is coupled to a boot device via a network, and that includes an initialization subsystem. As part of an initialization of the computing device, the initialization subsystem performs first network-level connection operations that do not result in a connection to the boot device. If the initialization subsystem then determines that a boot device connection refresh should be performed, it performs Unified Extensible Firmware Interface (UEFI)-level reconnection operations followed by second network-level connection operations that result in a connection to the boot device, and provides the boot device as an option for completing the initialization of the computing device.