Linked Questions

395 votes
43 answers

Installing Broadcom Wireless Drivers

I'm having serious problems installing the Broadcom drivers for Ubuntu. It worked perfectly on my previous version, but now, it is impossible. What are the steps to install Broadcom wireless drivers ...
162 votes
9 answers

Could not load 'vboxdrv' after upgrade to Ubuntu 16.04 (and I want to keep secure boot)

I upgrade from Ubuntu 15.10 to 16.04 and since then VirtualBox 5.0.18 isn't starting my VMs anymore. It complains that 'vboxdrv' isn't loaded. So I try to load it and get the following error: $ sudo ...
  • 1,905
100 votes
4 answers

Why do I get "Required key not available" when install 3rd party kernel modules or after a kernel upgrade?

This issue happens only on UEFI systems with enabled Secure Boot. When I try to install DKMS modules like VirtualBox, Nvidia, or Broadcom drivers, they do not install and I get Required key not ...
  • 85.9k
80 votes
5 answers

Wireless networking not working after resume in Ubuntu 14.04

[Update]: The same problem exists in Kubuntu and is solved in the same manner. [Solved]: By applying the following command nmcli nm I got the following: Before suspend RUNNING STATE ...
13 votes
2 answers

Broadcom Wireless Drivers unclaimed after installing update 16.04

I recently updated my Lenovo Y50 computer to 16.04. Since the update, I have been unable to see or connect to any wireless networks. The output of running sudo lshw -C network is: *-network ...
  • 133
3 votes
1 answer

ubuntu 16.04 how to RE-enable wifi

There used to be a option "enable wifi" on the top-bar. However, I un-click that option and that option never pops out again. How can I RE-enable my wifi. Thanks a lot. I have try rfkill list all in ...
6 votes
1 answer

No more WIFI. oem-wifi-intel-iwlwifi doesn't build on the new 4.4 kernel

i have trouble with internal wifi card on my Dell Latitude 5590 runing Ubuntu 16.04 LTS. What happend before problem occured: I recieved notification that my laptop has updates, updated it, enrolled ...
3 votes
3 answers

Ubuntu 18.04: No WiFi adapter found - secure boot disabled

I am using Lenovo T460 running 18.04.2 and kernel Linux 4.15.0-46-generic. The wireless settings shows "No Wi-Fi adapter found". I've disabled secure boot from start. I've tried to enable Wi-Fi again ...
0 votes
1 answer

wiFi detection problems after installing Ubuntu 16.04 LTS

I had installed Ubuntu 16.04 LTS and having trouble detecting Wifi connection . Please Help..Any suggestions ? I did ipconfig /release after logging in my windows 10. Doesn't seem to help. How do I ...
1 vote
1 answer

Wifi not working after 16.04 upgrade

I have an Asus 1015E-DS02 I've tried the solutions here to no avail. I've also tried the solutions on here and here even though my wifi hasn't worked at all since the upgrade. I'd also like to ...
1 vote
0 answers

Ubuntu 16.04 wifi button not turning on

I just installed Ubuntu 16.04 on a Compaq Presario CQ57 laptop (came out around 2012). The machine has a Realtek RTL8188CE wifi adapter. It's still going strong! However, now that I've switched to ...
  • 111
0 votes
0 answers

Wifi not working on Ubuntu 16.04 LTS

First off, let me start by saying that I am well aware that many other people have asked similar questions, and have had their questions answered and their problems solved. I am here because I have ...
  • 1
0 votes
1 answer

Wi-Fi problem with Ubuntu 16.04 on Lenovo G50—45

I clean installed Ubuntu 16.04 today. All seems to be working fine except Wi-Fi. The drop down menu shows no Wi-Fi connection option. I did a rfkill list - Wireless LAN Soft blocked: no Hard ...
-1 votes
1 answer

upgrading Ubuntu from 14.04 to 16.04_ Update problem [duplicate]

After upgrading Ubuntu from 14.04 to 16.04 I got the following two problems. 1. When I do sudo apt-get update I got: W: <>: ...
2 votes
0 answers

Ubuntu 16.04 WiFi not working

I have tried almost everything to make my WiFi work. It just gets automatically disconnected and never gets connected unless restarted. Even sudo service network-manager restart doesn't work. Also my ...
  • 319

15 30 50 per page