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=18.104.22.168 (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.