Wifi card Bradcom BCM4312 is detected but cant find any network at Fedora 24

asked 2016-09-21 12:28:29 -0500

Walker82 gravatar image

Hi. I'm using Fedora 24 in a Dell Inspiron 1440 with Broadcom BCM4312 wifi card. After installing fedora, my wifi card was not detected out of box. I had to do a lot of google research before I found this page and follow it instructions. After reboot, my wifi card was finaly detected but it cannot see any network. When I select "select network" it shows an empty list with the message "no networks". I know there is at least twot networks that I can see and connect through my smartphone.

$ lsmod | egrep 'b43|wl'
  wl                   6447104  0
  cfg80211              569344  1 wl
$ dmesg | grep b43
$ sudo iwlist scan
  wlp12s0   Interface doesn't support scanning : Invalid argument
  lo        Interface doesn't support scanning.
  enp0s29f7u3  Interface doesn't support scanning.
  enp9s0    Interface doesn't support scanning.

Any tips?

edit retag flag offensive close merge delete


What is the output of lspci | grep -i net?

ssieb gravatar imagessieb ( 2016-09-21 13:24:54 -0500 )edit

$ lspci | grep -i net

  09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 02)
  0c:00.0 Network controller: Broadcom Limited BCM4312 802.11b/g LP-PHY (rev 01)

Thank you, Samuel-Sieb

Walker82 gravatar imageWalker82 ( 2016-09-21 14:24:16 -0500 )edit

Do you have a USB ethernet device connected? I'm wondering what the enp0s29f7u3 interface is, but that's most likely irrelevant.

In a terminal as root run journalctl -fa. In another terminal as root run modprobe -r wl and modprobe wl and see if anything interesting shows up in the journal.

ssieb gravatar imagessieb ( 2016-10-03 14:13:43 -0500 )edit