[Regression] [network UNCLAIMED] Wi-Fi stopped working in Xenial, although it is working in Trusty

[Amr Ibrahim]

My laptop is Acer Aspire E5-551G-T0KC.

In Xenial, I have installed the propriety wireless driver from Additional Drivers.
There are no Wi-Fi networks shown in the network indicator, as if the wireless card does not exist.
This is a regression from Trusty.

Here are some terminal outputs that are specific to the wireless card:

:~$ lspci -vvnn | grep -A 9 Network
03:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
 Subsystem: Lite-On Communications Inc BCM43142 802.11b/g/n [11ad:6645]
 Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Interrupt: pin A routed to IRQ 0
 Region 0: Memory at f0800000 (64-bit, non-prefetchable) [size=32K]
 Capabilities: <access denied>
 Kernel modules: bcma, wl

:~$ sudo lshw -C network
  *-network UNCLAIMED
       description: Network controller
       product: BCM43142 802.11b/g/n
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       version: 01
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress cap_list
       configuration: latency=0
       resources: memory:f0800000-f0807fff

:~$ lsb_release -rd
Description: Ubuntu 16.04.1 LTS
Release: 16.04

:~$ sudo dmidecode -s bios-version
V1.15

:~$ sudo dmidecode -s bios-release-date
07/06/2015

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu8
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Sep 3 22:05:31 2016
InstallationDate: Installed on 2016-04-26 (130 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
SourcePackage: bcmwl
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[penalvch (penalvch)]

Amr Ibrahim, thank you for reporting this and helping make Ubuntu better.

Could you please provide the missing information following https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx#Filing_bug_reports ?

[penalvch (penalvch)]

Amr Ibrahim:
1) To see if this is already resolved, could you please test http://cdimage.ubuntu.com/daily-live/current/ and advise to the results?
2) Would using https://launchpad.net/ubuntu/+source/broadcom-sta provide a WORKAROUND?

[Launchpad Janitor (janitor)]

[Expired for bcmwl (Ubuntu) because there has been no activity for 60 days.]