|Wanderer - thank you for the explanation, however, the complexity I was referring to I have not outlined IN THIS THREAD. because I did not want to cause confusion.|
But now the issue 'solved' I WILL refer to it.
My not-so-modern laptop has no trouble accessing the internet at Unwired Hotspots in (local) libraries. Since the USB port was damaged, I was using a PCMCIA-WiFi card. Once I had my own private wireless network, I expected to be able to access it the same way, but have up to this point failed to do so. Luckily I also invested in a USB-WLAN stick, and as stated before, eventually worked out how to get internet access with it. That process includes many steps which may well have to be followed in a sequence -
involving a bit of a discovery tour - the sum total of all those considerations, I find complex.