wireless problems

[pupu]

Version:
Ubuntu server 11.10 oneiric

OUTPUTS:
lspci -nn
0c:00.0 Network controller [0280]: Inter Corporation PRO/Wireless 3945ABG [Golan] Network Connection [8086:4222] (rev 02)

lsmod
iwl3945 83391 0
iwl_legacy 83487 1 iwl3945

dmesg | grep firmware
[18.260826] iwl3945 0000:0c:00.0: loaded firmware version 15.32.2.9

Please help!

[hunter_thom]

Version:
Ubuntu server 11.10 oneiric

OUTPUTS:
lspci -nn
0c:00.0 Network controller [0280]: Inter Corporation PRO/Wireless 3945ABG [Golan] Network Connection [8086:4222] (rev 02)

lsmod
iwl3945 83391 0
iwl_legacy 83487 1 iwl3945

dmesg | grep firmware
[18.260826] iwl3945 0000:0c:00.0: loaded firmware version 15.32.2.9

Please help!

Whats the problem? Looks like your card is recognized and a driver is loaded. Are you unable to connect to a wireless network? Please provide details including what type of wireless network you are trying to connect to.

[jayd512]

Hello and Welcome!

Are you able to detect wireless networks?
What is the out put of the following commands:

ifconfig -a
iwlist wlan0 scan

*wlan0 is what my wireless interface is called. If yours is named something different, use that in the iwlist command.

[pupu]

Hello All,

Output from ifconfig -a
wlan0 Link encap:Ethernet HWaddr 00:1b:77:a9:16:f9
UP BROADCAST RUNNING 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 MB) TX bytes:0 (0.0 MB)

Output from iwlist wlan0 scan
wlan0 No scan results

Also, the contents of my /etc/network/interfaces file regarding 'wlan0' looks like this:
auto wlan0
iface wlan0 inet dhcp

(I inputted this information into the file myself)

@hunter_thom
I'm assuming that I am unable to connect to a wireless network. I'm basing this on the output of the iwlist wlan0 scan command, and on the fact that if I run sudo ifup wlan0 then the system just hangs, and I need to interrupt it with crtl+c. Sadly, my knowledge is not sufficient enough to draw more concrete conclusions.
I appreciate all your help, however.
Many thanks!

[hunter_thom]

Hello All,

Output from ifconfig -a
wlan0 Link encap:Ethernet HWaddr 00:1b:77:a9:16:f9
UP BROADCAST RUNNING 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 MB) TX bytes:0 (0.0 MB)

Output from iwlist wlan0 scan
wlan0 No scan results

Also, the contents of my /etc/network/interfaces file regarding 'wlan0' looks like this:
auto wlan0
iface wlan0 inet dhcp

(I inputted this information into the file myself)

@hunter_thom
I'm assuming that I am unable to connect to a wireless network. I'm basing this on the output of the iwlist wlan0 scan command, and on the fact that if I run sudo ifup wlan0 then the system just hangs, and I need to interrupt it with crtl+c. Sadly, my knowledge is not sufficient enough to draw more concrete conclusions.
I appreciate all your help, however.
Many thanks!

By chance is the SSID you are trying to connect to not broadcasted? For example at home I do not broadcast my SSID so I needed to manually enter the SSID on my laptop.

[jayd512]

Just for clarification on the hardware, check this thread:
http://www.linuxforums.org/forum/wir...tart-here.html

Reply back here with the resulting information.

[pupu]

Dear All,
Thank you for your ongoing help.
@hunter_thom: I'm not sure how to check whether the SSID is broadcasted or not.
Is the SSID the same as ESSID? If yes, then I think the answer is that the SSID is broadcasted.
I've come to this conclusion from the fact that when I run the following command:

sudo iwlist wlan0 scanning

then under ESSID I get the following information

ESSID:"Nack!"

which is the name of my router.


@jayd512: Here are the outputs from the commands in the thread you posted in answer to my query:

sudo lspci -knn
0c:00.0  Network controller [0280]: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection [8086:4222] (rev 02)
             Subsystem: Intel Corporation Device [8086:1021]
             Kernel driver in use: iwl3945
             Kernel modules: iwl3945

sudo lsmod
I addressed this in my original post

dmesg | grep wlan
[16.002961] ADDRCONF (NETDEV_UP): wlan0: link is not ready

I also ran the following:

dmesg | grep firmware
dmesg | grep iwl ('iwl' is the name of my driver)

and there were no errors shown.
And finally, the last piece of code:

sudo uname -r
3.0.0-12-server

I think that covers all the questions!
Let me know if you need anything else. And again, appreciate all the help.

[jayd512]

What was the output of ifconfig -a?
Do you happen to have a on/off hardware switch for you wireless card?

[atreyu]

then under ESSID I get the following information
Code:

ESSID:"Nack!"

which is the name of my router.

If you could see your wireless router's ESSID, then try to associate with it, e.g.:

iwconfig wlan0 essid 'Nack!'

If you use encryption, send your key:

iwconfig wlan0 key XXXXXXXXXXXXXX

Then manually request an IP from the router:

dhclient wlan0