I have a dell inspiron M301Z running with ubuntu 12.04. It used to run fine until I reinstalled it. It worked fine during the installation but when i downloaded the updates via updates manager the connection dropped. Now it keeps trying to connect to the network but fails each time. The connection is working on windows. In Additional drivers it shows the broadcom STA wireless driver as activated.
sudo lshw -C network
*-network
description: Wireless interface
product: BCM4313 802.11b/g/n Wireless LAN Controller
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth1
version: 01
serial: c4:46:19:95:cf:08
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=6.20.155.1 (r326264) latency=0 multicast=yes wireless=IEEE 802.11abg
resources: irq:17 memory:d0300000-d0303fff
*-network
description: Ethernet interface
product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 04
serial: 00:26:b9:70:33:62
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=N/A ip=192.168.2.4 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:43 ioport:a000(size=256) memory:d0004000-d0004fff memory:d0000000-d0003fff
rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: no
2: dell-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
3: dell-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
4: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
I have read a few posts on here and tried a few things but nothing worked.
Thanks