Couple of days back vmnic0 in one of ESXi 4.1 host was showing as disconneted in Vcenter. It is HP Proliant BL680c G5 server. There is no issue with the ethernet adapter and it is also showing in the BIOS. We rebooted the host to check but after that there is no vmnic0 in vCenter. When checked in the ESXi host by issuing esxcfg-nics -l command, vmnic0 is not showing but when we run the command lspci -v | less command or vmkchdev -l command vmnic0 is showing. It is appearing in esx.conf file as well. I have tried to update the nic driver but it did not resolve the issue.
Any idea?