wireless problem, i'm going crazy

**un_polle** · August 15th, 2008

first: as soon as i had installed ubuntu (a couple of weeks ago) everything worked fine. but after some updates (i think..) the wifi stopped working.

now i've got an intel PRO/Wireless 3945ABG, and i've followed a couple of topic installing this stuff:

sudo apt-get install linux-backports-modules-hardy-generic

before that i don't even see the wireless connection in the network menager, now i can see it, but it doesn't find any wireless connection...

if they can help i put down the ouput for ifconfig and iwconfig:

ifconfig:

eth0 Link encap:Ethernet HWaddr 00:16:36:3e:3a:f0
inet addr:37.240.94.77 Bcast:37.240.95.255 Mask:255.255.248.0
inet6 addr: fe80::216:36ff:fe3e:3af0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2019 errors:11 dropped:0 overruns:0 frame:0
TX packets:1600 errors:0 dropped:0 overruns:0 carrier:0
collisions:11 txqueuelen:1000
RX bytes:2604417 (2.4 MB) TX bytes:169656 (165.6 KB)
Interrupt:18

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:1700 errors:0 dropped:0 overruns:0 frame:0
TX packets:1700 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:85000 (83.0 KB) TX bytes:85000 (83.0 KB)

iwconfig:

lo no wireless extensions.

eth0 no wireless extensions.

wmaster0 no wireless extensions.

wlan0 IEEE 802.11a ESSID:"" Nickname:""
Mode:Managed Channel:0 Access Point: Not-Associated
Tx-Power=0 dBm
Retry min limit:7 RTS thr

ff Fragment thr=2346 B
Power Management

ff
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

p.s.
if i make the hardware testing it gave me the intel PRO/Wireless 3945ABG...so i dont think it's a matter of drivers...but i don't really know causa 'till 2 weeks ago i was on windows....it's my first experience with linux/ubuntu...

sorry for my english

reading some more topic i've found this one http://ubuntuforums.org/showthread.php?t=769990
now i just don't know if that topic can solve my problem (if someone can just say "yes, follow that topic" i'll try) but i've already tried with many ones so before doing another one i wanna check the opinion of someone that knows what's ubuntu

(also that topic make me wonder if my wireless is up or down...how can i check it? if it's just down i crash my head on a wall)