2

After upgrading the mint 18 kernel to 4.4.0-87-generic I no longer have wireless. My wired device still works, but my wireless nic has disappeared from ifconfig -a.

It does show up for lspci:

02:00.0 Network controller: Broadcom Corporation BCM4352 802.11ac Wireless Network Adapter (rev 03)

iwlist scan; lshw -c net

*-network UNCLAIMED
       description: Network controller
       product: BCM4352 802.11ac Wireless Network Adapter
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       version: 03
       width: 64 bits
       clock: 33MHz
       capabilities: cap_list
       configuration: latency=0
       resources: memory:f7200000-f7207fff memory:f7000000-f71fffff

It also shows up in "Driver Manager", so I chose the following:

Broadcom Corporation: BCM4352 802.11ac Wireless network Adapater:
bcmwl-kernel-source (recommended)
Version 6.30.223.271 +bdcom-Oubuntu1~1.1
Broadcom 201.11 Linux STA wireless driver source

I tried rebooting and even booting into an earlier kernel, but still my wireless device is "unclaimed" and does not show up for ipconfig.

2

this might be useful, basically...

sudo apt-get install firmware-b43-installer

and if something like "An unsupported BCM4312 Low-Power (LP-PHY) device was found." comes out, then:

sudo apt-get install firmware-b43-lpphy-installer

  • Awesome, it no longer shows as "unclaimed." Do I need to restart? it still does not show up under ifconfig -a. – flyingcars34 Aug 16 '17 at 14:52
  • yes, please, you need to load your kernel with the new drivers – Christopher Díaz Riveros Aug 16 '17 at 15:16
  • Ok, I rebooted, the device is no longer "unclaimed" but still does not show up for ifconfig. Is there something i'm missing? – flyingcars34 Aug 16 '17 at 22:21
  • I had some troubles with a broadcom wifi some time ago, check rfkill list sometimes the card is hard blocked, if you don't have rfkill, install it with sudo apt-get install rfkill try this link too – Christopher Díaz Riveros Aug 17 '17 at 0:06
  • Hmm, yeah I did check rfkill, it was originally soft-killed but I fixed that, I'll take a look at that link. Anything else you can think of? – flyingcars34 Aug 21 '17 at 12:12

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.