Windows 7: Can't detect 1 wireless network

Hello,

I have an very strange issue with my network adapter of model Atheros AR9285 802.11 b/ g/n wifi adapter over Windows 7 home premium edition
It detects several networks, but not the network I just configured from my home box. All sort of other networks are detected, but not this one.

Even configuring manually doesn't solve the problem, so I would assume there is a problem with this connection, but strangely enough, it's detected and works perfectly on my other computer running on Vista and equipped with Intel Wireless Wifi Link 4965 AGN #2.

I suspect there might be some settings problems in the configuration of the adapter, or even compatibility problems between the homebox I have and the adapter.

Here are the settings of the adapter:
802.11b Preamble -> long and short
AdHoc 11n -> Enable
Network address -> Not Present
Receive Buffers -> 256
Scan Valid Interval -> 60
Transmit Buffers -> 512

Here is the model of the box:
Freebox FADSL05C 0-ER

Here is the result of ipconfig /all run on the laptop:


Windows IP Configuration

Host Name . . . . . . . . . . . . : svetlana-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Wireless LAN adapter Wireless Network Connection 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
Physical Address. . . . . . . . . : C2-17-FE-9B-06-53
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe FE Family Controller
Physical Address. . . . . . . . . : 70-5A-B6-8A-58-A4
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2a01:e35:8a8e:9a80:2d67:ce66:37ee:312d(Preferred)
Temporary IPv6 Address. . . . . . : 2a01:e35:8a8e:9a80:912d:d3b8:e9e9:98c7(Preferred)
Link-local IPv6 Address . . . . . : fe80::2d67:ce66:37ee:312d%12(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.10(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 05 June, 2010 1:25:05 PM
Lease Expires . . . . . . . . . . : 15 June, 2010 1:28:03 PM
Default Gateway . . . . . . . . . : fe80::207:cbff:feb1:8298%12
192.168.0.254
DHCP Server . . . . . . . . . . . : 192.168.0.254
DNS Servers . . . . . . . . . . . : 212.27.40.241
212.27.40.240
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Atheros AR9285 802.11b/g/n WiFi Adapter
Physical Address. . . . . . . . . : C4-17-FE-9B-06-53
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{610AE040-9B13-4DC5-A683-4BB8AE382660}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter 6TO4 Adapter:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{13D117C2-FA9D-4DF5-A445-F3A94CC4D183}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes



Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:73bc:4cb:10ac:a757:1657(Preferred)
Link-local IPv6 Address . . . . . : fe80::4cb:10ac:a757:1657%14(Preferred)
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{C1F282BA-8B29-4541-8173-8E385C31AD77}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

The wired connection works with no problem and other wireless connection also, but this one I would like to set is just not detected.

Thank you in advance for any help,
Mathieu