Ubuntu - Installing Broadcom wireless drivers

Particularly for a Lenovo S21-e

To install lshw:

$ sudo apt-get install lshw

Obtaining network adapter information

$ sudo lshw -class network

On a Lenovo S21-e this produces:

someone@s21e-20:~$ sudo lshw -class network

[sudo] password for someone: 

  *-network                 

       description: Wireless interface

       product: BCM43142 802.11b/g/n

       vendor: Broadcom Inc. and subsidiaries

       physical id: 0

       bus info: pci@0000:01:00.0

       logical name: wlp1s0

       version: 01

       serial: ac:d1:b8:f7:d4:1d

       width: 64 bits

       clock: 33MHz

       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless

       configuration: broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) ip=194.132.164.24 latency=0 multicast=yes wireless=IEEE 802.11

       resources: irq:16 memory:90500000-90507fff

To install BCM43142 Driver on Ubuntu

sudo apt-get update

sudo apt-get install broadcom-sta-dkms

Reboot if necessary. If the issues persist, it is recommended that you install pastebinit, by running:

sudo apt install pastebinit