I just wiped my Dell Latitude's E6410's hard drive and installed ubuntu-12.04-desktop-amd64.iso. The wireless connection kept timing out, but the wired connection is perfectly fine.
I already tried to
sudo apt-get remove bcmwl-kernel-source sudo apt-get install bcmwl-kernel-source
but it did not solve the problem.
03:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wwireless LAN Controller (rev 01)
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@0000:03:00.0 logical name: eth2 version: 01 serial: 5c:ac:4c:14:f4:dd width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=wl0 driverversion=188.8.131.52 (r326264) latency=0 multicast=yes wireless=IEEE 802.11abg resources: irq:17 memory:e6e00000-e6e03fff
nm-tool (sorry about the formatting, this is inputted by hand)
Device: eth2 [Belkin_e18584] Type: 801.11 WiFi Driver: wl State: connecting (configuring) Default: no HW Address: 5C:AC:4C:14:F4:DD Capabilities: Wireless Properties WEP Encrypion: yes WPA Encrypion: yes WPA2 Encrypion: yes