Comment 47 for bug 429370

I have seen this behaviour in Oneiric on an 802.11 wired network.

On Windows, the network connectivity instructions explicitly tell us to disable "Enable Fast Reconnect". The wpa_supplicant in Oneiric will not read a configuration file by default added using just -c. Further, it will not read a configuration file set on the command line using -c unless an interface is also set using -i. Even after all this was done, it went on to use fast_reauth anyway because it was a wired interface and it tried to communicate to the interface using wireless extensions. In the end the wpa_supplicant DBus service needed to be started with -ieth0 -Dwired -c <pathtoconf> and the configuration file specified fast_reauth=0. This really DID disable fast_reauth, working around whatever problem this particular network has...