Proble with wifi

Issues related to configuring your network
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geekCode
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Joined: 2019/05/14 04:46:08

Proble with wifi

Post by geekCode » 2019/05/14 04:54:29

I recently installed centos 7 and I am unable to connect to my wifi network.
Below is output from few commands I ran referring to other posts,

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[root@localhost Desktop]# lspci -nn | grep -i net
00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection I218-LM [8086:155a] (rev 04)
02:00.0 Network controller [0280]: Broadcom Corporation BCM43228 802.11a/b/g/n [14e4:4359]

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[root@localhost Desktop]# lsusb.py
usb1            1d6b:0002 09  2.00  480MBit/s 0mA 1IFs (Linux 3.10.0-327.el7.x86_64 xhci-hcd xHCI Host Controller 0000:00:14.0) hub
 1-3            0424:2134 09  2.10  480MBit/s 0mA 1IFs (SMSC USB2134B) hub
  1-3.2         0a5c:21f1 ff  2.00   12MBit/s 0mA 4IFs (Broadcom Corp BCM20702A0 40F02F00E239)
 1-4            03f0:a407 00  2.00   12MBit/s 100mA 2IFs (HP HP Link-5 micro dongle)
 1-7            04ca:7024 ef  2.00  480MBit/s 500mA 2IFs (DDFQA019I5O4NP HP HD Webcam)
usb2            1d6b:0003 09  3.00 5000MBit/s 0mA 1IFs (Linux 3.10.0-327.el7.x86_64 xhci-hcd xHCI Host Controller 0000:00:14.0) hub
 2-3            0424:5534 09  3.00 5000MBit/s 0mA 1IFs (SMSC USB5534B) hub
usb3            1d6b:0002 09  2.00  480MBit/s 0mA 1IFs (ehci_hcd 0000:00:1d.0) hub
 3-1            8087:8000 09  2.00  480MBit/s 0mA 1IFs (Intel Corp.) hub

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[root@localhost Desktop]# nmcli d
DEVICE      TYPE      STATE      CONNECTION 
virbr0      bridge    connected  virbr0     
enp0s25     ethernet  connected  enp0s25    
virbr0-nic  tap       connected  virbr0-nic 
lo          loopback  unmanaged  --    

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toracat
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Re: Proble with wifi

Post by toracat » 2019/05/14 05:12:24

Broadcom WLAN adapters such as BCM43228 are not supported. You have two choices here to get the driver. One is to build wl-kmod following ELRepo's instructions. Another is to install akmod-wl drivers module from RPM Fusion.
CentOS Forum FAQ

Ruud_Kuin
Posts: 2
Joined: 2019/08/31 22:09:24

Re: Proble with wifi

Post by Ruud_Kuin » 2019/08/31 22:55:45

toracat wrote:
2019/05/14 05:12:24
Broadcom WLAN adapters such as BCM43228 are not supported...
Bit set back by such notice "...are not supported...", as a Linux/RHEL/CentOS novice I'd like to request an easier way to activate a WiFi, tried everything what was suggested at this forum and Google-ing, only to realize after several hours and many attempts it's not going to work, AT ALL! Pity, I must say, while I really want to start my study RHCSA/RHCE, but without a WiFi I cannot connect to anything. Writing and reading info via my mobile phone. Why isn't there an easy way to install and make it work? Please...

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toracat
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Re: Proble with wifi

Post by toracat » 2019/09/01 00:06:45

The `wl` driver is closed source. In fact, many Broadcom wireless cards cannot be supported in CentOS as well as in ELRepo, due to the fact that Broadcom never released drivers for these devices under an open source compatible license such as GPL. You are welcome to write to your hardware vendor and express your desire for the driver to be released under such a license.
CentOS Forum FAQ

Ruud_Kuin
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Joined: 2019/08/31 22:09:24

Re: Proble with wifi

Post by Ruud_Kuin » 2019/09/01 05:03:40

Thanks for your reply toracat!

Oh, didn't realize it was closed source, since other distributions (Debian based) don't seem to have the problem. My thought was that it would be a matter of porting from one Linux architecture to another (apologies for my ignorance on this), but since its source isn't open...

In the Packard Bell netbook I use there's a Broadcom 4312 WiFi card taking care of the wireless signal. Other than this tiny hardware problem, CentOS is working like a charm; GNOME will soon be replaced by XFCE to make it run a little faster, but first wanted to deal with this network issue, not planning to connect to the web via cable all the time with this little mobile device. ;-)

Best, Ruud.

bonedome
Posts: 73
Joined: 2017/04/22 08:11:04

Re: Proble with wifi

Post by bonedome » 2019/09/02 16:28:16

Hello
and welcome to the wonderful world of broadcom wireless, I use the old elrepo method to create my own rpm but that rpmfusion akmod-wl looks so much simpler.
You will also need https://download1.rpmfusion.org/nonfree ... om-wl.html this should also work with newer elrepo kernels
Fix patch for kernel >= 5.1.x
A reboot will also be required and take a bit longer.
Let us know how you get on.

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