Comment 100 for bug 259278

grahamt: the knetworkmanager in the intrepid repos is a dummy package - it doesn't do anything by itself, it just depends on netowrk-manager-kde (which is knetworkmanager renamed). If you installed from a CD, knetworkmanager shouldn't be installed, and installing it won't change anything (unless network-manager-kde also wasn't installed). If you upgraded, the Hardy knetworkmanager is replaced with the dummy package, which requests that network-manager-kde is installed.

In otherwords, if you already had the knetworkmanager program running, then installing the knetworkmanager doesn't make a difference.

The only reason that might have fixed your problem, that I can think of, is that network-manager-kde was somehow reconfigured at the same time, however, I tried "sudo dpkg-reconfigure network-manager-kde" and it didn't fix anything for me.