2

I regularly use Ubuntu for work but never had this problem before. On my personal computer HP ENVY I decided to have Ubuntu 16.04 alongside windows 8. Installation went fine. When I logged in, I could not see option for wifi connection. I looked up few forums but none of them helped. So far I have tried the following :

  1. Installed fresh copy of Ubuntu
  2. installed Linux-mint just to see if it works.
  3. Settings > Software & Updates > Additional Drivers > Update
  4. install firmware-b43-installer

None of it worked. Is there any solution to it? I am fed up of not understanding what is wrong.

After running the command 

lspci -knn | grep Net -A2

I get following output:

Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n
[14e4:4365] (rev 01)    DeviceName: Broadcom BCM43142 802.11bgn 1x1 WiFi
Adapter + BT 4.0 combo adapter  Subsystem: Hewlett-Packard Company
BCM43142 802.11b/g/n [103c:2230]

Currently I am using Ethernet connection.

command 

sudo lshw -C network

gives following output

 *-network UNCLAIMED     
       description: Network controller
       product: BCM43142 802.11b/g/n
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 01
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress cap_list
       configuration: latency=0
       resources: memory:b2500000-b2507fff
  *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eno1
       version: 10
       serial: 3c:a8:2a:b4:74:51
       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=rtl8168g-3_0.0.1 04/23/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:28 ioport:4000(size=256) memory:b2404000-b2404fff memory:b2400000-b2403fff
Kaz Wolfe
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Ojas Kale
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2 Answers2

1

You need to install the Broadcom wireless drivers for your machine. One needs to install a different package for different PCI-ID's. Fortunately, an answer has already been provided for a question regarding installation of Broadcom Wireless Drivers. Follow the link of the question provided below

Installing Broadcom Wireless Drivers

Nakul Parmar
  • 36
0

If rebooting doesn't fix your issue, run 

lspci | grep Wireless

and search for the drivers for your adapter, then install them. If they require you to build them from the source, then run

make
sudo make install
reboot

and it should work.