Comment 1 for bug 245184

Confirmed - and the problem is actually worse:

I can't even connect to a EAP TLS WPA1 WLAN on Intrepid (KDE).

Doesn't work using the stock NM, so I used the PPA:
root@psll09551:/var/log# dpkg -l | grep -i network-man
ii network-manager 0.7~~svn20081018t105859-0ubuntu2~nm2 network management framework daemon
ii network-manager-kde 1:0.7svn864988-0ubuntu1ppa1 KDE systray applet for controlling NetworkManager
root@psll09551:/var/log#

If I try to update an existing WLAN connection then it spits out:
Oct 29 09:55:47 psll09551 NetworkManager: <WARN> connection_updated_cb(): connection_updated_cb: Invalid connection: 'NMSetting8021x' / 'client-cert' invalid: 2

If I try to create a new WLAN connection then we get:
Oct 29 10:18:20 psll09551 NetworkManager: <WARN> connection_get_settings_cb(): connection_get_settings_cb: Invalid connection: 'NMSetting8021x' / 'client-cert' invalid: 2

Manual use of wpa_supplicant with everything turned off associates fine, and this was indeed all working under hardy - but broken going to Intrepid.