lshw -C shows Network Controller UNCLAIMED and incorrect product name (Ubuntu 20 fresh install, Dell Precision 3581)

Question

Doing an install of Ubuntu 20 on a brand new Dell Precision 3581. The high level problem is that wired connections work but there's no wireless options in the Network settings (i.e. the wireless network adapter isn't being found).

I tried manually installing the Intel network drivers (https://www.linuxfordevices.com/tutorials/ubuntu/no-wi-fi-adapter-found-error). I've also played around with BIOS settings (using Dell BIOS 1.4.1, I've turned Fast Boot options off, enabled UEFI Network Stack). But haven't really gotten any progress.

The strange thing is that in any of the other posts I've been able to find about this problem, they all at least have an actual product name for the network device when they run lshw and so those posts have answers relavant to their hardware, but all mine says is "Intel Corporation". Not sure what that means though.

Also, I'd prefer to be using the 20.04 HWE kernel but have tried both.

$ sudo nmcli device
DEVICE     TYPE      STATE      CONNECTION         
enp0s31f6  ethernet  connected  Wired connection 1 
lo         loopback  unmanaged  --
$ sudo lshw -C network
  -network:0 UNCLAIMED

       description: Network controller
       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 14.3
       bus info: pci@0000:00:14.3
       version: 01
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix cap_list
       configuration: latency=0
       resources: iomemory:620-61f memory:62631a4000-62631a7fff
  -network:1
       description: Ethernet interface
       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: enp0s31f6
       version: 01
       serial: 4c:d7:17:11:81:ff
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=5.15.0-88-generic duplex=full firmware=0.2-4 ip=10.69.152.135 latency=0 link=yes multicast=yes port=twisted pair speed=10Mbit/s
       resources: irq:131 memory:9f280000-9f29ffff

Additional troubleshooting commands:

$ lspci -nnk | grep 0280 -A3
00:14.3 Network controller [0280]: Intel Corporation Device [8086:51f1] (rev 01)
    Subsystem: Intel Corporation Device [8086:4090]
00:15.0 Serial bus controller [0c80]: Intel Corporation Device [8086:51e8] (rev 01)
    Subsystem: Dell Device [1028:0c07]

$ sudo modprobe iwlwifi
$

$ sudo dmesg | grep iwl
$

Answer 1

There were three alternate kernel versions that were able to work with my wifi chip and fixed overall the wifi issue:

• 6.5.1-zabbly+
• 5.15.0.67-generic
• 5.15.0-46-generic

I ended up using .67 for my own applications, but all three worked