wireless connection issue

[G.]

On Sun, Jun 12, 2011 at 7:56 AM, Nils Kassube <kassube at gmx.net> wrote:
> G. wrote:
>> I am in France having trouble connecting to a particular wifi device.
>> Called a Freebox.  My wireless adapter can connect to other wireless
>> devices except the one in this flat (which I connect to with a
>> cable). I can connect with Windows7 (wife insists on using).  So
>> there is nothing wrong with the device, I should say.
>
>> ~$ iwconfig
>
>> wlan0     802.11bg  ESSID:"Bouygues Telecom Wi-Fi"
>> Nickname:"rtl8191SEVA2" Mode:Managed  Frequency=2.412 GHz  Access
>> Point: 02:1F:9F:BB:80:CA Bit Rate=36 Mb/s
>
>> I am connected here to Bouygues telecom but I can not access the
>> internet.
>
> I suppose you use the network manager applet which Ubuntu uses by
> default. Some people have more luck using wicd instead of network
> manager. If you install wicd, please remove the network manager packages
> because they may be in conflict if both try to use the wireless
> interface. But before you try wicd, what is the output of these
> commands?
>
> route -n
> cat /etc/resolv.conf
>
> That should at least clarify if you got the needed network configuration
> via DHCP. The route -n command should give you the IP address of the
> access point. You should be able to ping that address. If that works,
> you can test the name resolution with
>
> ping www.google.com
>
> Another option would be to reset the access point (disconnect the power)
> but I'm not so sure it would help.
>
>> When I search for Additional Drivers I do not show proprietary
>> drivers in use.  I thought Realtek would show up on the list.  I
>> would reinstall if I could.
>
> As you can connect to other access points, it is unlikely that the
> driver is the problem.
>
>
> Nils
>

Nils, here are the outputs.  I also doubt the driver is the problem.
Other networks on the list give me login window on the browser so I am
connecting to those routers.

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
82.239.101.0    0.0.0.0         255.255.255.0   U     1      0        0 eth0
87.90.128.0     0.0.0.0         255.255.240.0   U     2      0        0 wlan0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlan0
0.0.0.0         82.239.101.254  0.0.0.0         UG    0      0        0 eth0
peg at pegubuntu:~$

peg at pegubuntu:~$  cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 212.27.40.241
nameserver 212.27.40.240
nameserver 194.158.122.10
# NOTE: the libc resolver may not support more than 3 nameservers.
# The nameservers listed below may not be recognized.
nameserver 194.158.122.15

I can connect fine by cable.

Thanks for your help


gary