My question is similar to this, but now it is about 11.10.
My wireless card:
~$ lspci -vvnn |grep 14e4
03:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
Subsystem: Broadcom Corporation Device [14e4:0510]
I followed the instructions on the Ubuntu Wiki and reinstalled my STA driver but still no luck.
I also removed and reinstalled the driver and nothing changed. I am tired rebooting :).
More info:
~$ sudo lshw -class network
*-network
description: Ethernet interface
product: AR8131 Gigabit Ethernet
vendor: Atheros Communications
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth1
version: c0
serial: 5c:ff:35:0f:bd:8b
size: 100Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI duplex=full firmware=N/A ip=192.168.0.106 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
resources: irq:43 memory:d0200000-d023ffff ioport:a000(size=128)
*-network
description: Network controller
product: BCM4313 802.11b/g/n Wireless LAN Controller
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:03:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=bcma-pci-bridge latency=0
resources: irq:17 memory:d0300000-d0303fff
~$ rfkill list
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no