Ubuntu – Cannot locate wireless networks on Acer Aspire M5 laptop


I just purchased an Acer Aspire M5-583P laptop and installed Ubuntu 14.04 on it (this is not the machine I am typing on now). Upon restart I am unable to connect to the internet and am not able to show any wifi connections at all. Please help. The results of

sudo lshw -C network

    thedoctor818@thedoctorstardis-Aspire-M5-583P:~$ sudo lshw -C network
  *-network UNCLAIMED     
       description: Network controller
       product: BCM4352 802.11ac Wireless Network Adapter
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:04:00.0
       version: 03
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:b0600000-b0607fff memory:b0400000-b05fffff
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0.1
       bus info: pci@0000:05:00.1
       logical name: eth0
       version: 14
       serial: 08:9e:01:f2:53:33
       size: 10Mbit/s
       capacity: 1Gbit/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 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8411-2_0.0.1 07/08/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:62 ioport:3000(size=256) memory:b0704000-b0704fff memory:b0700000-b0703fff


lspci -vvnn | grep 14e4 

    thedoctor818@thedoctorstardis-Aspire-M5-583P:~$ lspci -vvnn | grep 14e4
04:00.0 Network controller [0280]: Broadcom Corporation BCM4352 802.11ac Wireless Network Adapter [14e4:43b1] (rev 03)

are as above.

How to solve this?

Best Answer

Pleased do:

sudo apt-get update
sudo apt-get install bcmwl-kernel-source


How to install the bcmwl-kernel-source package without an internet connection.

The bcmwl-kernel-source and dkms package and there required dependencies are on the livecd or liveusb disk that you installed ubuntu from.

Insert the livrcd or liveusb disk and navigate to pool > restricted > b > bcmwl and copy and paste the bcmwl deb package to your desktop.

Now do the same with pool > main > d > dkms.

Now install the deb files. Open the terminal with CTRL+ALT+_T and:

cd ~/Desktop
sudo dpkg -i *.deb
sudo modprobe wl
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