2 port NIC card not detected (missing) on the ESXi host

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VMware vSphere ESXi

- Some of the NICs are not detected on the ESXi host

In vCenter UI > Cluster > Host > Configure > Networking > Physical adaptors may not show all the NICs which are physically attached to the server.

- The same network card will not be seen in the ESXi host CLI:

Host Client UI > Networking > Physical NIC

- This same NIC card is also not listed from ESX CLI when running the below commands:

esxcfg-nics -l

esxcli network nic list

- iDRAC also doesn't show these NICs present on its UI:

- Running the following commands shows the 2 port NIC not detected:

lspci -v | grep -A1 -i ethernet

vmkchdev -l | grep -i vmnic

The 2-Port NIC card is not detected in iDRAC console, hence we determined the issue might be associated with the Hardware.

To resolve:

It could be either of the 3 scenarios:

1. Try to reseat the card correctly in the PCI slot

2. Verify the NIC is compatible with the hardware and ESXi version (VMware Compatibility Guide: I/O Device Search)

3. If reseating do not work, either the PCI slot may be bad or the NIC card is bad

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