For
this you need to click on Network-manager applet and see if you can
see you
wireless
there. If not, enable wireless driver from System > Administration
> Hardware drivers.
Now
coming to your modem settings, best solution is to configure it for
"pppoe" mode.
(
You can do it through Windows too, if you wish to )
1.
Connect the modem with your computer with the LAN cable and turn it
on.
2.
Open your Browser ( Firefox ) and type 192.168.1.1 in the address
bar. Type the username and password as “admin”.
3.
After logging in, click Advance Setup on L.H.S. menu.
4.
A table appears, check the checkbox in the first row showing "pvc
0" under the head remove, then click Remove button at the
bottom.
5.
Click Add, ensure the "vci" value as 35 , click Next.
6.
Select the connection type as "PPPOE" , click Next.
7.
Type your broadband username, password provided by your ISP and
service name as multiplay, click Next.
8.
Click next to reach the last page, click Apply/Save.
9.
Save and Reboot at the bottom of the table, wait for approx. 3 min.
to automatically reboot the modem. After the modem reboots, confirm
the stability of DSL light, after it becomes stable, you can start
using your internet connection.
sudo
gedit
/etc/NetworkManager/nm-system-settings.conf
nm-system-settings.conf
tab will open:
[main]
plugins=ifupdown,keyfile
no-auto-default=00:13:a9:61:9d:9d,
[ifupdown]
managed=false
Change
this "false" to true.
Save,
exit.
Then
restart Networking.
sudo
/etc/init.d/networking restart