Hello!
I'm trying to set up Internet connection via WiFi (have ADSL modem with WiFi) but unsuccessful. I can see Wireless Networks available but can't establish encrypted connection with specific one (assigned by provider).

Here's what I have if this may help:
alexey@alexey-laptop:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:a0:d1:82:c7:75
inet addr:192.168.1.15 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::2a0:d1ff:fe82:c775/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:9593 errors:0 dropped:0 overruns:0 frame:0
TX packets:9759 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6970429 (6.9 MB) TX bytes:1441288 (1.4 MB)
Interrupt:27 Base address:0x6000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:8598 errors:0 dropped:0 overruns:0 frame:0
TX packets:8598 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:430020 (430.0 KB) TX bytes:430020 (430.0 KB)

ppp0 Link encapoint-to-Point Protocol
inet addr:178.122.72.222 P-t-P:82.209.195.83 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1
RX packets:6585 errors:0 dropped:0 overruns:0 frame:0
TX packets:6676 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:5627727 (5.6 MB) TX bytes:1050063 (1.0 MB)

wlan0 Link encap:Ethernet HWaddr 00:1b:9e:5d:b3:e6
inet addr:192.168.1.17 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21b:9eff:fe5d:b3e6/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
I have to assign eth0 & wlan0 inet addr. manually every time (can I set it up just once and for all?) - it's a SIDE question
Also
wlan0 IEEE 802.11abgn ESSID:"<ZTE>"
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=20 dBm
Retry long limit:7 RTS thrff Fragment thrff
Power Managementff