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Jack Bonner
July 7th, 2008, 08:46 PM
Basically the title speaks for itself, I have just installed Kubuntu onto my laptop (previously running Windows Vista) and even though it recognises that my wireless card is there and working, it won't connect to my network.
I'm sorry if you've heard this before, I hear that problems with the Broadcom wireless cards are common. I've double checked my password is correct and it is. I'm running Kubuntu 8.04 on a HP Compaq 6720s laptop

Thanks in advance for any help

Het Irv
July 7th, 2008, 08:53 PM
I have that same laptop, but I think my card is an Intel.... can you paste the output of
lspci

I did not have to do anything to get my laptop to work under Hardy (Ubuntu).

sujoy
July 7th, 2008, 08:55 PM
mine is also a Broadcom Corporation BCM94311MCG wlan mini-PCI, and only wicd seems to work with it properly. so try it out.

Jack Bonner
July 7th, 2008, 08:57 PM
This is what I got from the lspci


00:00.0 Host bridge: Intel Corporation Mobile GME965/GLE960 Memory Controller Hub (rev 0c)
00:02.0 VGA compatible controller: Intel Corporation Mobile GME965/GLE960 Integrated Graphics Controller (rev 0c)
00:02.1 Display controller: Intel Corporation Mobile GME965/GLE960 Integrated Graphics Controller (rev 0c)
00:19.0 Ethernet controller: Intel Corporation 82562GT 10/100 Network Connection (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 03)
10:00.0 Network controller: Broadcom Corporation BCM4312 802.11a/b/g (rev 02)

Het Irv
July 7th, 2008, 08:58 PM
Restricted Drivers are installed correctly?

Jack Bonner
July 7th, 2008, 09:01 PM
I believe so, that was the first thing I did after installing the actual OS. Under System Settings > Network Settings I have a tick next to my wireless card so i'm assuming it's working

Het Irv
July 7th, 2008, 09:06 PM
And you can see your wireless AP, but it will not connect?
Do you have good signal strength?
Have you tried a manual connection?

Jack Bonner
July 7th, 2008, 09:09 PM
And you can see your wireless AP, but it will not connect?
Do you have good signal strength?
Have you tried a manual connection?

I can see my wireless network and it has a signal strength of 78. Signal isn't really a problem as i'm sat next to the router. I did try manual connection and it just came out with the same results as when I did it automatically. It attempted to connect, got to 23% then failed.

Het Irv
July 7th, 2008, 09:12 PM
I had this problem once, but it was a conflict between the Nvidia and Broadcom drivers, and that doesn't affect you. I'm gonna call in some backup on this one.

Note: I have had luck using WICD in the past, sometimes it works better than the default Network Manager.

Jack Bonner
July 7th, 2008, 09:17 PM
Note: I have had luck using WICD in the past, sometimes it works better than the default Network Manager.

What exactly is WICD and where can I install it? I couldn't find it in the package manager. As i'm sure you can see, i'm a little new to the whole Linux game

Het Irv
July 7th, 2008, 09:22 PM
WICD is a alternate network manager that sometimes will work when the default cannot.
http://wicd.sourceforge.net/

What type of security are you using?

I have been told that if you are using WPA you have to check the ACII box.
Note: I don't run KDE so I am not sure where everything is or what you are looking at.

Jack Bonner
July 7th, 2008, 09:36 PM
What type of security are you using?

I'm using WPA Personal security, but I don't see any ACII box to tick, I'm going to try using WICD and see if I can make any progress with that

ibuclaw
July 7th, 2008, 09:47 PM
I believe he means ASCII ;)

If you still get no luck from WICD, I've used a version of KDE with wlassistant on. And that worked mighty fine to connect to my router. (I use WPA2).

Copy this line, and paste it into a terminal using "Ctrl+Shift+V"

sudo apt-get install wlassistant
Then search for it in the KDE menu and run.

Regards
Iain

Jack Bonner
July 7th, 2008, 09:59 PM
I believe he means ASCII ;)

If you still get no luck from WICD, I've used a version of KDE with wlassistant on. And that worked mighty fine to connect to my router. (I use WPA2).

Copy this line, and paste it into a terminal using "Ctrl+Shift+V"

sudo apt-get install wlassistant
Then search for it in the KDE menu and run.

Regards
Iain

Still nothing i'm afraid, I just get connection failed. Although I find that program easier to use than the standard one

ajmorris
July 8th, 2008, 05:47 AM
hi there,
can you please post the output of sudo iwconfig
sudo iwlist scanning

and also, have you tried ndiswrapper instead of the native linux drivers?

AJ

chetan.89
July 8th, 2008, 06:12 AM
Try connecting through System-->Help and support.

If that doesn't work, check out this article --> http://ubuntuforums.org/showthread.php?t=493958

I hope it helps you (worked in my case)
Good luck ! :)

Jack Bonner
July 8th, 2008, 10:51 AM
hi there,
can you please post the output of sudo iwconfig
sudo iwlist scanning

and also, have you tried ndiswrapper instead of the native linux drivers?

AJ

Here's the sudo iwconfig

lo no wireless extensions.

eth0 no wireless extensions.

wmaster0 no wireless extensions.

wlan0 IEEE 802.11g ESSID:""
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=27 dBm
Retry min limit:7 RTS thr:off Fragment thr=2346 B
Encryption key:off
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



and here's the sudo iwlist scanning


lo Interface doesn't support scanning.

eth0 Interface doesn't support scanning.

wmaster0 Interface doesn't support scanning.

wlan0 Scan completed :
Cell 01 - Address: 00:1E:2A:12:74:2C
ESSID:"Bonner"
Mode:Master
Channel:12
Frequency:2.467 GHz
Quality=76/100 Signal level=-61 dBm Noise level=-72 dBm
Encryption key:on
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Extra:tsf=0000003d1d7bc234

ddrichardson
October 24th, 2008, 06:06 PM
Not being associated could be a number of things but the driver being for a slightly different firmware revision would seem the most likely candidate - does this system work fine in Windows?

If you have the Windows driver, try NDISWRAPPER, this chipset is problematic. I have one on an HP that will not play ball and another on a generic laptop that connects without problem.