UEFI boot? Is controller seen in Legacy boot mode?
No, Not in Legacy Mode and not in UEFI, While trying to add EFI Boot option, only Intel Network Controller IP 4/6 options along is shown. Updating BIOS to 009 and controller FW to 23.33. Will come back after further testing.
Update the firmware for both the server system and the RAID Controller and remember to set boot drive 0 in the RAID BIOS.
We did that too. But problem persisted.
The work around was to Factory reset the adaptor.
From Adaptor Properties "Set Factory Defaults" Enable or Yes and Accept. On reboot Boot Manager Showed SCSI Controller and on reloading Server OS Windows Boot Manager too listed and system loaded OS. Problem solved.
We appreciate the feedback on this issue and we are glad to know it was resolved.