I'm not sure if this is a bug or missconfiguration pertaining to NetworkManager.
NetworkManager: <WARN> impl_manager_activate_connection(): Connection (2) /org/freedesktop/NetworkManagerSettings/Connection/2 failed to activate: (2) Device not managed by NetworkManager
I'm using knetworkmanager as my frontend (not 4.3 version), but once inna blue, when my system resumes from sleep, I see icon from knetworkmanager that it can't access my wireless card. Check my logs I see the above error. On this kinda of situation mostly simply restarting NetworkManager will fix it, at other times I have to do rmmod and then modprobe ath9k, or have to restart the computer. It doesn't happen often but when it does it's annoying. Now my questions is, has anyone experience this before and knows the root of the problem? It's been happening since fresh install of Fedora 10 and been through 4 updates of NetworkManager and it's still exists.
I would reported as a bug but since I can't reproduce it easily, it would be tough to diagnose.