hi Sylvia,
Thank you for raising this to your development team, this is really great. May I request the motherboard that you are referring should also include DQ67SW. I only realised now the topic of this motherboard is DQ67OW. It seems like ever since ESXi 5.5 latest version has been released, a few Intel vPro DQ series motherboard is failing with similar issues.
Again, do help me to send DQ67SW request to your elite development team to look at the issue.
Thank you very much for your kind understanding