Score:0

Wifi trouble Ubuntu 20.04

ar flag

I am running 64 bit Ubuntu 20.04.2 LTS on a Dell XPS 8700. I had wifi upon fresh installation but it stopped working upon reboot. I do not have an option to select the wifi menu. If I force it to show up, it will tell me no wifi adapter found.

I've been through several driver-related fixes with no luck so far. At the moment, I do not even have a driver in use for my wifi card (BCM43142).

The card shows up when I run lshw -C network Downloading the driver on a usb and then attempting to download on the machine was unsuccessful; it required dependencies. Attempting to install the dependencies was also unsuccessful.

Any help would be appreciated, I feel like I'm making a silly mistake.

Edit 1: iwconfig outputs as follows: lo no wireless extensions

CrazyTux avatar
us flag
Can you run `iwconfig` and add the output to your question? And try to execute `systemctl umask wpa_supplicant.service` and `systemctl start wpa_supplicant.service` and `systemctl restart NetworkManager`
Kyle Scheik avatar
ar flag
@CrazyTux I added the iwconfig output, and the three other commands resulted in no change.
chili555 avatar
cn flag
Can't you get a temporary ethernet connection by ethernet or tethering? If so, the solution is one minute away.
Score:0
hu flag

Deactivate the Secure Boot Options in your BIOS

If this does not fixes your issue then try using Ethernet or usb-tethering from any mobile device to connect to internet and try the following commands

sudo apt update
sudo apt upgrade
sudo apt install --reinstall bcmwl-kernel-source
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