Wifi Adapter Not Recognized

Hi All,

I'm having a bear of a time getting my wireless card to work in a Linux Mint 20.1 machine. The machine is my old dev box that I want to re-purpose and requires wireless connectivity to my network (it's in an area were hard line isn't available). This machine dual boots to Windows 10 and all hardware works fine in Windows. The wireless adapter connects to my network quickly and without issue. When I boot Linux it looks to me like it's not able to find the card. This card is a few years old, so it's not so new that there shouldn't be drivers for it in the kernel.

I did connect the computer via Ethernet cable today and did all system updates, but still the wifi card doesn't work.
As a side note, I've tried several USB Wifi adapters and none of them work in Linux, but all work just fine when I boot Windows.

The hardware is a PCIe wireless adapter ASUS_PCE-N53. Below is the output from lshw -C network. What does "network UNCLAIMED" mean?

Any help would be most appreciated.
Thanks
Peter

  *-network
       description: Ethernet interface
       product: 82579V Gigabit Network Connection
       vendor: Intel Corporation
       physical id: 19
       bus info: pci@0000:00:19.0
       logical name: eno0
       version: 05
       serial: 00:22:4d:6a:26:35
       size: 1Gbit/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=3.2.6-k duplex=full firmware=0.11-4 ip=192.168.1.115 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:39 memory:f3500000-f351ffff memory:f3525000-f3525fff ioport:3040(size=32)
  *-network UNCLAIMED
       description: Network controller
       product: RT5592 PCIe Wireless Network Adapter
       vendor: Ralink corp.
       physical id: 0
       bus info: pci@0000:07:00.0
       version: 00
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:f3200000-f320ffff


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