Alistair, thank you for testing.
As a workaround you could try to connect your printer with the adapter to the USB port of your router or NAS and then see whether system-config-printer finds it as a network printer.
Alistair, thank you for testing.
As a workaround you could try to connect your printer with the adapter to the USB port of your router or NAS and then see whether system- config- printer finds it as a network printer.