PXE-E53 “No boot filename received”
The first thing I’d probably check is your BIOS setup.
It may be trying to look for a network drive before starting from your local devices
Either the CMOS battery is bad & the boot order settings have changed in the BIOS, or the hard drive is bad & the computer is bypassing it & progressing thru the boot order.
Network Boot usually comes after the HDD.