Ubuntu not detecting wireless networks

to try to get your wifi working go to System → Administration → Software Sources click on the Updates tab, then check the box for Unsupported updates (intrepid-backports). after you've enabled the backports update your ubuntu software from a terminal with the commands:

sudo apt-get update
sudo apt-get upgrade

you may need to reboot. after that go to System → Administration → Hardware Drivers and enable any restricted drivers you have available.

if that doesnt work, Open a Terminal from the menu Applications → Accessories → Terminal and type:

lshw -C network

post the output here

I'm having a similar problem. There is a vista wireless network I know exists yet my computer cannot detect it. Another vista laptop detects it just fine. I ;ve restarted my laptop, reinstalled network manager, added unsupported updates, and I've run the lshw. It appears that the wireless is working though. Here is the output.

liz@liz-laptop:~$ sudo lshw -C network
  *-network:0
       description: Ethernet interface
       product: BCM4401 100Base-T
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 01
       serial: 00:0f:1f:1a:8e:28
       size: 100MB/s
       capacity: 100MB/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=b44 driverversion=2.0 duplex=full ip=192.168.15.4 latency=32 link=yes module=ssb multicast=yes port=twisted pair speed=100MB/s
  *-network:1
       description: Network controller
       product: BCM4306 802.11b/g Wireless LAN Controller
       vendor: Broadcom Corporation
       physical id: 3
       bus info: pci@0000:02:03.0
       version: 03
       width: 32 bits
       clock: 33MHz
       capabilities: bus_master
       configuration: driver=b43-pci-bridge latency=32 module=ssb
  *-network:0 DISABLED
       description: Ethernet interface
       physical id: 2
       logical name: pan0
       serial: fa:10:8a:af:ed:25
       capabilities: ethernet physical
       configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A link=yes multicast=yes
  *-network:1
       description: Wireless interface
       physical id: 3
       logical name: wlan0
       serial: 00:90:96:b5:83:72
       capabilities: ethernet physical wireless
       configuration: broadcast=yes multicast=yes wireless=IEEE 802.11bg

Thanks!