Wireless Internet Not Working with Ubuntu

[Linux711]

I am trying to find out why the wireless internet on my laptop is not working.  After searching google I found these two commands lspci and lshw -c network.  But I still can't find out why it won't connect.

When I use the lspci command it shows that it is detecting the wireless network card. Then when I enter the sudo lshw -C network command right after the password it says *-network DISABLED. I think this is why I am not able to access the internet. Could someone help me enable the connection? It is not encrypted.

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paul@paul-laptop:~$ lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 01)
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
03:01.0 CardBus bridge: O2 Micro, Inc. OZ601/6912/711E0 CardBus/SmartCardBus Controller (rev 40)
09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5752 Gigabit Ethernet PCI Express (rev 02)
0c:00.0 Network controller: Broadcom Corporation BCM94311MCG wlan mini-PCI (rev 01)

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paul@paul-laptop:~$ sudo lshw -C network
[sudo] password for paul:
  *-network DISABLED     
       description: Wireless interface
       product: BCM94311MCG wlan mini-PCI
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:0c:00.0
       logical name: eth1
       version: 01
       serial: 00:16:ce:73:66:ba
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=bcm43xx driverversion=2.6.22-14-generic latency=0 link=no module=bcm43xx multicast=yes wireless=IEEE 802.11b/g
  *-network
       description: Ethernet interface
       product: NetXtreme BCM5752 Gigabit Ethernet PCI Express
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:09:00.0
       logical name: eth0
       version: 02
       serial: 00:15:c5:39:70:ef
       capacity: 1GB/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.77 firmware=5752-v3.19 latency=0 link=no module=tg3 multicast=yes port=twisted pair

[Aegis]

I had a similar experience with a laptop on which I ran Ubuntu.  Ubuntu detected the physical hardware for the laptop's internal wireless card (atheros) but had no drivers to install for it. 

I plugged in an Ativa brand wireless card to the PCMCIA slot of the laptop, and Ubuntu detected hardware and installed drivers for the Ativa card.  (I forget what chipset/architecture the Ativa card was.) 

Can you borrow or try another wireless card on your laptop to see if Ubuntu will detect and install drivers for it?

[devlin]

Is the router set up with an SSID?
 If so you will need to put it in your network settings so the laptop can tell the router it is allowed to access the network. I can see many routers on our wireless but all but one requires at minimum the SSID to be sent including my own.

Is your network adapter using Athros chipset? if so have you tried the MadWifi app? It's available in the Ubuntu repositories and hasworked wonders for a few of my friends who's wireless had similar problems.
For info aboutMadWiFi see http://madwifi.org


Also I've found this extremely helpful!
http://www.hpl.hp.com/personal/Jean_Tourrilhes/index.html

Good luck and hope something here helped!