Hi Edouard.
Thanks for the help.
I have considered a USB to Ethernet adapter and there are several on the market for reasonable prices, but as you say, a cable is still required. I have seen some WiFi adapters for USB connectivity, but I cannot remember where I saw them. There is also the possibility of an adapter that uses household wiring for Ethernet and some have a USB port also, I think. The Eltima and Flexihub require a device (PC) at the front end as the hub for the USB to connect to, essentially sharing a USB input through the PC. This is not what I wanted to do. Some things are not simple.
Cheers