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    • Quad-port NIC not recognized by RHEL 9

    Posted on

    Hi,

    So I added a quad-port NIC to my RHEL server while it was at version 8.4. I admit that I haven't used it much, relying on the integrated NIC with which my system came already, but those 4 ports were visible in the Settings -> Network dialog. I meanwhile upgraded to RHEL 9. Those 4 ports are no longer available.

    Commands 

    nmcli dev
    and 
    ip a
    no longer list those 4 ports. The only evidence I get that the system sees it has a quad port NIC is 
    lspci | grep -i ethernet
    which correctly lists all four ports with the following output:

    03:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev ff)
03:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev ff)
04:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev ff)
04:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev ff)
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)

    As can be seen from the output, the system sees that there are 5 ports: the quad port Internet Gigabit card and the onboard Realtek NIC.

    I have just finished updating this system with the latest available updates from Red Hat, however the quad port NIC remains unavaliable for network configuration.

    Physically, when I plug in the Ethernet cable into one of the 4 ports, I get a green light. the other end of that cable goes into a switch and I also get green light on that end.

    How do I get my quad port NIC recognized again and available for configuration?

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