Seeing exactly the same error, I fixed this by updating the firmware files from a 3rd party deb which allowed the adapter to work. on 6.8 I was seeing failed connections using the bundled realtek firmware.
Seeing exactly the same error, I fixed this by updating the firmware files from a 3rd party deb which allowed the adapter to work. on 6.8 I was seeing failed connections using the bundled realtek firmware.