Comment 5 for bug 112244

I have also suffered from this problem. It was rather annoying as I was due to demonstrate (on my laptop which wasn't connected to a network) a PHP/MySQL project I'd been working on and had to use Firefox after being embarrassed by Konqueror. Don't get me wrong Konqueror is my favourite browser (hence why I went to it first) but as it's the only web browser installed in Kubuntu by default this could course big problems for users. I was only saved as I had Firefox installed for cross browser testing.

P.S. Here's an interesting article on this with a few possible workarounds too.
http://movingparts.net/2007/11/07/kde-networkmanager-workaround/