The device only works with 2.4GHz and isn't dual-band.
#PURGE RTL8812AU DRIVER DRIVER#
UPDATE: I've had partial success compiling (v5.6.4.2) and installing the driver via DKMS.
#PURGE RTL8812AU DRIVER DRIVERS#
My chipset is indeed RTL881 1AU and most RTL8812AU/21AU drivers should support it.
It's very confusing that the various Realtek 88XX drivers on GitHub support many chipsets, but rarely specify exactly which are not supported.
#PURGE RTL8812AU DRIVER PATCH#
to your RPM, your source is Has that changed? I applied a kernel 5.10 patch to, but oddly that version of the driver didn't recognise my device. Using a my mobile phone's wifi hotspot, I'm repeatedly asked for a password until after a several tries KDE informs me that the interface is disconnected due to "No secrets provided" I made the password very simple for testing purposes and am also able to connect to the same hotspot using my laptop's internal wifi interface: usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-2: New USB device found, idVendor=0bda, idProduct=0811, bcdDevice= 2.00 Usb 1-2: new high-speed USB device number 10 using xhci_hcd