No wireless after new install (card is Broadcom BCM43142)

Questions about WIFI networks and devices
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jmelton
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No wireless after new install (card is Broadcom BCM43142)

Post by jmelton » Tue May 01, 2018 8:09 pm

Put a new SSD in my old Dell Inspiron 3520, and although my wireless connected just fine from the USB stick I was installing from and it appeared to install everything perfectly, when I reboot I have no wireless access or even detection of wireless capability when I click on the network settings icon. But lspci shows both the wireless (Broadcom BCM43142, a.k.a. DW1704) and ethernet cards. I have wired access, and wireless still works fine when I boot from my old disk, which is now in an external case. Is the kernel that comes with version 18.3 one that won't work with my card?

Update: I fixed this issue from the Driver Manager by selecting the bcmwl-kernel-source option. (I assume that's the name of the driver?) I thought I'd leave the post up in case it might help someone else. Now to figure out how to get it working in my other distro, Elem. OS.

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kc1di
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Re: No wireless after new install (card is Broadcom BCM43142)

Post by kc1di » Fri May 04, 2018 7:59 pm

You need to install the

Code: Select all

bcmwl-kernel-source
driver. If you can get an Ethernet connection simply go to the driver manager and install it from there.
in Cinnamon the driver manager can be found in Menu>Administration. Our you can install it via the terminal with this command

Code: Select all

sudo apt install bcmwl-kernel-source

if you do not have internet access follow the instruction on this page: https://ubuntuforums.org/showthread.php?t=2319377/url
Good luck.
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