I got a new funny issue with my VMWare ESXi 6.5 homelab. The HP NC523SFP is officially supportet thru the HCL of VMWare as far as I can tell on http://www.vmware.com/resources/compatibility/detail.php?deviceCategory=io&productid=19311&vcl=true
With a fresh install of 6.5.0d and the vib of the nqlcnic version 6.0.63 driver the card is recognized. Gets an IP from the DHCP server, is pingable, but all the web services, esxi services are unavailable.
If I do a fresh install of 6.0 U3 with the vib qlcnic version 6.1.191 card becomes available and is working properly...
edit:// also the FW 4.20.20 which is mentioned is no where to be found my card is on 4.20.01 which is according to HP the latest fw for this card http://h20565.www2.hpe.com/hpsc/swd/public/detail?swItemId=MTX_c490fefa2eb24c4ba21d48b064#tab4