Lisi Reisz wrote:
I then moved the computer to its owner's house,having done the installation at my house. And everything internet-related has gone mad!! Now: Konqueror connects immediately to any site I have tried. Iceweasel connects intermittently: i.e. sometimes connects,sometimes doesn't.
Just a guess. I had a problem like that and it was DNS. Took me a while to get it right without having to reset the DNS after ever boot. Unfortunately I tried a lot of things and do not know which change fixed the problem.