Comment 1 for bug 330811

This still happens with the latest release (0.0+svn930811-0ubuntu1).

I managed to get the hidden wireless network working by giving the system a little hint: from konsole I used iwconfig to set the essid of my hidden network for the wireless interface, and few moments after that kwallet pops up and plasma-widget-network-manager connected to my network normally.

So it seems that hidden networks isn't searched by plasma-widget-network-manager even if they are manually configured and saved in the settings. (And in fact, the plasma-widget-network-manager doesn't show found hidden networks, but that was the case even with the old network manager from KDE 3.5.x.)