Probleme de configation wifi

Bonjour,

j ai en dualboot sur trois ordinateur ubuntu12.04 et windows
En france pas de probleme mais en suisse je n'arrive pas a avoir la wifi sur le pc fix qui est un acer aspire m1610 et sur un netbook samsung

je rentre les meme caracteristique que pour windows a savoir le meme mot de pass et je choisi wpa personal mais ca fonctionne ne pas

voici des information :

cat /etc/lsb-release

mickael@mickael-Aspire-M1610:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"

lsusb

mickael@mickael-Aspire-M1610:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 148f:2573 Ralink Technology, Corp. RT2501/RT2573 Wireless
Adapter
Bus 003 Device 002: ID 058f:9360 Alcor Micro Corp. 8-in-1 Media Card Reader
mickael@mickael-Aspire-M1610:~$

lspci

mickael@mickael-Aspire-M1610:~$ lspci
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 671MX
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] PCI-to-PCI bridge
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS968 [MuTIOL Media IO] (rev 01)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 IDE Controller (rev 01)
00:03.0 USB controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f)
00:03.1 USB controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f)
00:03.3 USB controller: Silicon Integrated Systems [SiS] USB 2.0 Controller
00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] 191 Gigabit Ethernet Adapter (rev 02)
00:05.0 IDE interface: Silicon Integrated Systems [SiS] SATA Controller / IDE mode (rev 03)
00:06.0 PCI bridge: Silicon Integrated Systems [SiS] PCI-to-PCI bridge
00:0c.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link)
00:0f.0 Audio device: Silicon Integrated Systems [SiS] Azalia Audio Controller
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV610 video device [Radeon HD 2400 PRO]
01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI RV610 HDMI Audio [Radeon HD 2350/2400 Series]

lspci -nn | grep -i net

mickael@mickael-Aspire-M1610:~$ lspci -nn | grep -i net
00:04.0 Ethernet controller [0200]: Silicon Integrated Systems [SiS] 191 Gigabit Ethernet Adapter [1039:0191] (rev 02)
mickael@mickael-Aspire-M1610:~$

sudo lshw -C network

mickael@mickael-Aspire-M1610:~$ sudo lshw -C network
[sudo] password for mickael:
  *-network               
       description: Ethernet interface
       produit: 191 Gigabit Ethernet Adapter
       fabriquant: Silicon Integrated Systems [SiS]
       identifiant matériel: 4
       information bus: pci@0000:00:04.0
       nom logique: eth0
       version: 02
       numéro de série: 00:1c:25:57:e2:9b
       taille: 10Mbit/s
       capacité: 100Mbit/s
       bits: 32 bits
       horloge: 33MHz
       fonctionnalités: pm bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=sis190 driverversion=1.4 duplex=half latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       ressources: irq:19 mémoire:fdffc000-fdffc07f portE/S:fe00(taille=128)
  *-network DÉSACTIVÉ
       description: Interface réseau sans fil
       identifiant matériel: 1
       information bus: usb@1:1
       nom logique: wlan0
       numéro de série: 00:0e:e8:dc:e8:f7
       fonctionnalités: ethernet physical wireless
       configuration: broadcast=yes driver=rt73usb driverversion=3.2.0-24-generic firmware=N/A link=no multicast=yes wireless=IEEE 802.11bg

lsmod

mickael@mickael-Aspire-M1610:~$ lsmod
Module                  Size  Used by
pci_stub               12550  1
vboxpci                22882  0
vboxnetadp             13328  0
vboxnetflt             27211  0
vboxdrv               252189  3 vboxpci,vboxnetadp,vboxnetflt
vesafb                 13516  1
arc4                   12473  2
iptable_nat            13016  0
iptable_mangle         12646  0
snd_hda_codec_hdmi     31775  1
rt73usb                27029  0
rt2x00usb              20061  1 rt73usb
rt2x00lib              48858  2 rt73usb,rt2x00usb
mac80211              436455  2 rt2x00usb,rt2x00lib
cfg80211              178679  2 rt2x00lib,mac80211
snd_seq_midi           13132  0
snd_rawmidi            25424  1 snd_seq_midi
snd_hda_codec_realtek   174055  1
ip6t_LOG               16846  4
xt_hl                  12465  6
ip6t_rt                12473  3
snd_hda_intel          32765  5
snd_hda_codec         109562  3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
nf_conntrack_ipv6      13581  7
nf_defrag_ipv6         13139  1 nf_conntrack_ipv6
ipt_REJECT             12512  0
snd_seq_midi_event     14475  1 snd_seq_midi
ipt_LOG                12783  0
snd_hwdep              13276  1 snd_hda_codec
xt_limit               12541  5
xt_tcpudp              12531  9
snd_pcm                80845  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
xt_addrtype            12596  0
xt_state               12514  7
psmouse                87213  0
serio_raw              13027  0
snd_seq                51567  2 snd_seq_midi,snd_seq_midi_event
ip6table_filter        12711  1
ip6_tables             22528  3 ip6t_LOG,ip6t_rt,ip6table_filter
nf_conntrack_netbios_ns    12585  0
nf_conntrack_broadcast    12541  1 nf_conntrack_netbios_ns
nf_nat_ftp             12595  0
nf_nat                 24959  2 iptable_nat,nf_nat_ftp
nf_conntrack_ipv4      19084  3 iptable_nat,nf_nat
nf_defrag_ipv4         12649  1 nf_conntrack_ipv4
nf_conntrack_ftp       13183  1 nf_nat_ftp
nf_conntrack           73847  9 iptable_nat,nf_conntrack_ipv6,xt_state,nf_conntrack_netbios_ns,nf_conntrack_broadcast,nf_nat_ftp,nf_nat,nf_conntrack_ipv4,nf_conntrack_ftp
snd_timer              28931  2 snd_pcm,snd_seq
bnep                   17830  2
iptable_filter         12706  0
snd_seq_device         14172  3 snd_seq_midi,snd_rawmidi,snd_seq
ip_tables              18106  3 iptable_nat,iptable_mangle,iptable_filter
bluetooth             158438  7 bnep
fglrx                2909855  94
ppdev                  12849  0
x_tables               21974  15 iptable_nat,iptable_mangle,ip6t_LOG,xt_hl,ip6t_rt,ipt_REJECT,ipt_LOG,xt_limit,xt_tcpudp,xt_addrtype,xt_state,ip6table_filter,ip6_tables,iptable_filter,ip_tables
binfmt_misc            17292  1
parport_pc             32114  1
snd                    62064  20 snd_hda_codec_hdmi,snd_rawmidi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_seq,snd_timer,snd_seq_device
mac_hid                13077  0
soundcore              14635  1 snd
snd_page_alloc         14115  2 snd_hda_intel,snd_pcm
sis_agp                13165  0
lp                     17455  0
parport                40930  3 ppdev,parport_pc,lp
usb_storage            39646  0
uas                    17828  0
firewire_ohci          40180  0
firewire_core          56906  1 firewire_ohci
crc_itu_t              12627  2 rt73usb,firewire_core
sis190                 22575  0
sata_sis               12700  2
floppy                 60310  0
mickael@mickael-Aspire-M1610:~$

iwconfig

mickael@mickael-Aspire-M1610:~$ iwconfig
lo        no wireless extensions.

wlan0     IEEE 802.11bg  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=0 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          
eth0      no wireless extensions.

ifconfig

mickael@mickael-Aspire-M1610:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:1c:25:57:e2:9b  
          UP BROADCAST MULTICAST  MTU:1500  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)
          Interruption:19 Adresse de base:0xdead

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:852 erreurs:0 :0 overruns:0 frame:0
          TX packets:852 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0
          Octets reçus:68816 (68.8 KB) Octets transmis:68816 (68.8 KB)

sudo iwlist scan

mickael@mickael-Aspire-M1610:~$ sudo iwlist scan
lo        Interface doesn't support scanning.

wlan0     Interface doesn't support scanning : Network is down

eth0      Interface doesn't support scanning.

uname -r -m

mickael@mickael-Aspire-M1610:~$ uname -r -m
3.2.0-24-generic i686

cat /etc/network/interfaces

mickael@mickael-Aspire-M1610:~$ cat /etc/network/interfaces
auto lo
iface lo inet loopback

mickael@mickael-Aspire-M1610:~$

nm-tool

mickael@mickael-Aspire-M1610:~$ nm-tool

NetworkManager Tool

State: disconnected

- Device: wlan0 ----------------------------------------------------------------
  Type:              802.11 WiFi
  Driver:            rt73usb
  State:             unavailable
  Default:           no
  HW Address:        00:0E:E8:DC:E8:F7

  Capabilities:

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points


- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            sis190
  State:             unavailable
  Default:           no
  HW Address:        00:1C:25:57:E2:9B

  Capabilities:
    Carrier Detect:  yes

  Wired Properties
    Carrier:         off


mickael@mickael-Aspire-M1610:~$

sudo rfkill list

mickael@mickael-Aspire-M1610:~$ sudo rfkill list
0: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
mickael@mickael-Aspire-M1610:~$

merci d'avance pour vos reponse et bonne journée