Hi Stephen,
I’ve looked into your issue. Unfortunately, the Intel 82599ES 10G SFP+ adapter is not supported by ESXi 8.x, as indicated in the Broadcom Compatibility Guide. However, the SolarFlare SFC9220 adapter is officially supported, so I recommend checking if the sfvmk driver is loaded properly.
If the adapter is still not recognized, you could try using a temporary USB NIC to get network access and continue troubleshooting. You could also check the output of the lspci
command to see if the adapter is detected by the system, and look for any driver-related errors in the /var/log/boot.gz
file.
Let me know if that helps or if you need further details.