Think you for your reply,
-i added my username to the netdev .
-the error message didn't show again , but the problém is not resolve : i cannot access internet .
the wicd is open but it didn't show me my wireless network.
*sudo /etc/init.d/dbus reload result :
"Rather than invoking init scripts through /etc/init.d, use service(
utility, e.g. service dbus reload
Since the script you are attempting to invoke has been converted to an Upstart, you may also user the reload(
utility, e.g. reload dbus"
Ps : wired connection connect to network (and i have local ip) but internet conection still not working.