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I just installed Ubuntu 14 on my laptop for the first time. After the installation I had no Wi-Fi connection. I went to "Edit Connections" and created a "Wi-Fi Connection", but don't know how to answer the questions such as SSID, Mode, BSSID, Device MAC address, Cloned MAC address, and MTU.

Can one of you gurus please help me?

Many thanks in advance and have a nice day.

Regards, Majid Chavoshi

Thanks for your assistance, below please find the output of lspci -knn | grep Net -A2

$ lspci -knn | grep Net -A2
00:19.0 Ethernet controller [0200]: Intel Corporation 82567LM Gigabit Network         Connection [8086:10fs] (rev 03)
Subsystem: Dell Device [1028:024f]
Kernel driver in use: e1000e

oc:oo.o Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
Subsystem: Dell Wireless 1397 WLAN Mini-Card [1028:000c]
Kernel driver in use: b43-pci-bridge
Pilot6
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Majid Chavoshi
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  • Please [edit] your question and add output of lspci -knn | grep Net -A2 terminal command. – Pilot6 Jun 13 '15 at 17:53
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    An please don't create new connections. It is for another purpose. You just need to install a proper driver. – Pilot6 Jun 13 '15 at 17:54
  • @mikewhatever This is not a duplicate of the question that provides guidance on how to ask this sort of question. It is most definitely related. – Elder Geek Jun 14 '15 at 02:09
  • Also I did a #cat /var/log/syslog | grep -i wireless – Majid Chavoshi Jun 14 '15 at 04:11
  • Also. I did a #cat /var/log/syslog | grep -i wireless – Majid Chavoshi Jun 14 '15 at 04:13
  • See the Broadcom help at https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx The b43 driver works fine, you just need to add the required firmware, which used to be in linux-firmware-nonfree or you might have to install the b43-fwcutter package. Definitely many other question relate to this issue. – ubfan1 Jun 14 '15 at 05:07

1 Answers1

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If you have a wired connection, run in terminal

sudo apt-get install bcmwl-kernel-source

and Wi-Fi will work.

If you do not have a wired connection use THIS GUIDE.

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Pilot6
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  • Hi There, thanks for your assistance. Below please find the output of the command:root@Eclectic-Consulting:~# apt-get install bcmwl-kernel-source Reading package lists... Done Building dependency tree
    Reading state information... Done E: Unable to locate package bcmwl-kernel-source root@Eclectic-Consulting:~#     – Majid Chavoshi Jun 15 '15 at 19:57
  • @MajidChavoshi If you do not have connection to internet, then it is normal output. Use offline guide. – Pilot6 Jun 15 '15 at 20:00
  • I setup a static IP, I do have connection to the Internet. root@Eclectic-Consulting:~# ifconfig -a eth0 Link encap:Ethernet HWaddr 00:21:70:e5:b4:d4
    inet addr:172.21.52.83 Bcast:172.21.53.255 Mask:255.255.254.0 inet6 addr: fe80::221:70ff:fee5:b4d4/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:51059 errors:0 dropped:0 overruns:0 frame:0 TX packets:15791 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:29893755 (29.8 MB) TX bytes:2077324 (2.0 MB)     – Majid Chavoshi Jun 15 '15 at 20:15
  • @MajidChavoshi Then run sudo apt-get update and try again. – Pilot6 Jun 15 '15 at 20:17
  • You are a genius dude, kudos to you! I don't have access to any wireless network now to test it, but I'm pretty sure it'll work. – Majid Chavoshi Jun 15 '15 at 21:07
  • @MajidChavoshi So you can accept the answer by clicking "bird" at the left. – Pilot6 Jun 15 '15 at 21:08