Unfortunately this started to appear for me again also... I'm using WPA2, and sometimes the applet just appear briefly, and then disappears again.
Seems like timing issues, although I dont think its possible to even control the order of applets in KDE :( -- knetworkmanager freezes if kwallet doesn't open immediately https://launchpad.net/bugs/69118 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs