Problème freewifi et mot de passe wpa

Bonjour,
Je rencontre des soucis pour me connecter en wifi a ma freebox.
Je suis sous ubuntu 9.10.
J'ai activé le wifi via mon compte, je suis passée en mode routeur également. Mais lorsque j'essaie de me connecter via network manager, en sélectionnant mon reseau puis en entrant mon mot de passe WPA, ca mouline nun moment puis la fenetre d'invite du mot de passe réapparait. Je dois retaper mon mot de passe.
Après avoir consulter https://forums.commentcamarche.net/forum/affich-37604408-configurer-le-wifi-sous-linux-debian#en-wpa , je me décide à poster.

Voici les indications que je peux fournir

iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

wmaster0  no wireless extensions.

wlan0     IEEE 802.11bgn  Mode:Managed  Frequency:2.412 GHz  
          Access Point: Not-Associated   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

ifconfig
eth0      Link encap:Ethernet  HWaddr 00:1d:ba:ea:57:ba  
          inet adr:192.168.0.10  Bcast:192.168.0.255  Masque:255.255.255.0
          adr inet6: fe80::21d:baff:feea:57ba/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:1389197 erreurs:0 :0 overruns:0 frame:0
          TX packets:818297 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:2034961556 (2.0 GB) Octets transmis:60778003 (60.7 MB)
          Interruption:16 

lo        Link encap:Boucle locale  
          inet adr:127.0.0.1  Masque:255.0.0.0
          adr inet6: ::1/128 Scope:Hôte
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          Packets reçus:8 erreurs:0 :0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:480 (480.0 B) Octets transmis:480 (480.0 B)

wlan0     Link encap:Ethernet  HWaddr 00:24:2b:ec:fe:bc  
          inet adr:127.0.0.1  Bcast:127.255.255.255  Masque:255.0.0.0
          adr inet6: fe80::224:2bff:feec:febc/64 Scope:Lien
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          Packets reçus:24 erreurs:0 :0 overruns:0 frame:0
          TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:2712 (2.7 KB) Octets transmis:4356 (4.3 KB)

wmaster0  Link encap:UNSPEC  HWaddr 00-24-2B-EC-FE-BC-65-63-00-00-00-00-00-00-00-00  
          UP RUNNING  MTU:0  Metric:1
          Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)

route -n
Table de routage IP du noyau
Destination     Passerelle      Genmask         Indic Metric Ref    Use Iface
192.168.0.0     0.0.0.0         255.255.255.0   U     1      0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 eth0
127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 wlan0
0.0.0.0         192.168.0.254   0.0.0.0         UG    0      0        0 eth0

cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 212.27.40.240
nameserver 212.27.40.241

nslookup www.google.fr
Server:		212.27.40.240
Address:	212.27.40.240#53

Non-authoritative answer:
www.google.fr	canonical name = www.google.com.
www.google.com	canonical name = www.l.google.com.
Name:	www.l.google.com
Address: 209.85.229.104
Name:	www.l.google.com
Address: 209.85.229.106
Name:	www.l.google.com
Address: 209.85.229.99
Name:	www.l.google.com
Address: 209.85.229.147
Name:	www.l.google.com
Address: 209.85.229.105
Name:	www.l.google.com
Address: 209.85.229.103

ping -c2 www.google.fr
PING www.l.google.com (209.85.229.104) 56(84) bytes of data.
64 bytes from ww-in-f104.1e100.net (209.85.229.104): icmp_seq=1 ttl=54 time=34.8 ms
64 bytes from ww-in-f104.1e100.net (209.85.229.104): icmp_seq=2 ttl=54 time=34.1 ms

--- www.l.google.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 34.148/34.522/34.897/0.418 ms

cat /etc/network/interfaces
auto wlan0 
iface wlan0 inet loopback
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

cat /etc/wpa_supplicant/wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant
eapol_version=1
ap_scan=1
fast_reauth=1

network={
    ssid="XXXXXXXXX"
    scan_ssid=1
    proto=WPA
    key_mgmt=WPA-PSK
    psk=XXXXXXXXXXXXXXXX
    priority=5
}

En espérant trouver une solution grâce à vous.

Cordialement,

Wig0