kde-plasma-nm disabled

[Neal Becker]

Network is working fine, with a wired enet.  I probably disabled nm a long time 
ago.  Now I want to enable it (so I can try bridge).

I have kde-plasma-nm-0.9.3.2-1.fc20.x86_64, but
on my desktop, the net icon has a red X.  If I try to edit connections/add 
connection, I don't see any wired interface names under 'restrict connection'.  
This suggests something's wrong - it's not learning the names of the interfaces.

In /var/log/messages I see:

Jan  7 10:27:34 nbecker7 dbus[624]: [system] Rejected send message, 3 matched 
rules; type="method_call", sender=":1.4740" (uid=1000 pid=8349 
comm="/usr/bin/kde-nm-connection-editor ") 
interface="org.freedesktop.DBus.Properties" member="Get" error name="(unset)" 
requested_reply="0" destination="org.freedesktop.NetworkManager" (uid=0 pid=602 
comm="/usr/sbin/NetworkManager --no-daemon ")

Any idea how to proceed?  On my laptop with working NM, if I go to the edit 
connections I see a list of several interfaces