Voila ce que ca me donne quand j'essaie d'activer la connection wifi :

Mar 29 12:50:00 localhost dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 3
Mar 29 12:50:02 localhost avahi-daemon[2637]: New relevant interface eth1.IPv6 for mDNS.
Mar 29 12:50:02 localhost avahi-daemon[2637]: Joining mDNS multicast group on interface eth1.IPv6 with address fe80::20e:35ff:fe55:b4ea.
Mar 29 12:50:02 localhost avahi-daemon[2637]: Registering new address record for fe80::20e:35ff:fe55:b4ea on eth1.
Mar 29 12:50:03 localhost dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 7
Mar 29 12:50:10 localhost dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 10
Mar 29 12:50:20 localhost dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 11
Mar 29 12:50:31 localhost dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 13
Mar 29 12:50:44 localhost dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 14
Mar 29 12:50:58 localhost dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 3
Mar 29 12:51:01 localhost dhclient: No DHCPOFFERS received.