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I am new to Ubuntu 16.04. on my Dell laptop

I was using windows10 and i did a dual boot in my pc.

It looks everything is good but i am not able to detect wifi connection.

when i did iwconfig

enp7s0    no wireless extensions.

lo        no wireless extensions.

After using this lspci -knn | grep Net -A2

06:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
    Subsystem: Dell Wireless 1704 802.11n + BT 4.0 [1028:0016]
    Kernel modules: bcma, wl

this above error was showing.

But my wifi is working fine in my window10.

Mohan Gopi
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  • Please [edit] your question and add output of lspci -knn | grep Net -A2 terminal command. – Pilot6 Aug 01 '16 at 10:06
  • @Pilot6 please check my updated question – Mohan Gopi Aug 01 '16 at 10:30
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    Disable Secure Boot in BIOS. – Pilot6 Aug 01 '16 at 10:31
  • it asked the password and after restarting the system i gave change boot state then i entered the password but it says it is not correct password – Mohan Gopi Aug 01 '16 at 10:43
  • It is much easier to disable secure boot in bios than using mokutil. If you want to use mokutil, you need to carefuuly read the directions. In some cases it does not ask for a password, but to enter some characters of a password, like 1st, 3rd, etc. But I suggest to get into BIOS and simply disable it there. – Pilot6 Aug 01 '16 at 10:45
  • got is thank you very much it realy helped me please answer it i will accept it – Mohan Gopi Aug 01 '16 at 10:52
  • I updated the other answer with some more details. You can upvote it there. I will not write an answer here since the question is a duplicate. – Pilot6 Aug 01 '16 at 10:58

1 Answers1

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You need to install bcmwl-kernel-source.

For installing this go to your terminal and give sudo apt-get install bcmwl-kernel-source command. Do a reboot after completing the installation and give this sudo modprobe wl command on the terminal.

Hope that's gonna fix your problem.

CodeMascot
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