Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I used ubuntu for several months before the update came around and ever since then my wifi has been unable to connect (let alone i can not see any available connections either). I have read everything online and followed all the code that everyone has advised yet nothing seems to work. somebody save me before i whack this computer. any suggestions are great ones

share|improve this question
    
Could you post your wifi vendor/model? Open a terminal and launch "lspci". Copy and paste the out. –  xkill Nov 20 '12 at 8:50
    
saadster@saadster-Inspiron-1440:~$ lspci 00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07) 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:1a.0 USB controller: Intel Corporation 82801I (ICH9 Family) –  user109394 Nov 20 '12 at 19:44
    
USB UHCI Controller #4 (rev 03) 00:1a.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03) 00:1a.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03) 00:1a.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03) 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03) 00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03) –  user109394 Nov 20 '12 at 19:44
    
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03) 00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 03) 00:1d.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03) 00:1d.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03) 00:1d.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03) 00:1d.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03) –  user109394 Nov 20 '12 at 19:44
    
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93) 00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03) 00:1f.2 SATA controller: Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode] (rev 03) 00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03) 09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02) 0c:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01) –  user109394 Nov 20 '12 at 19:45

2 Answers 2

I had problem with my dell laptop and wifi almost in all releases after 10.04. My solution was to use another network to update my drivers. However, last time, I followed the instruction of this post and it worked. Checked it out:

Dell Vostro 1520 wifi not working with Ubuntu 12.04

share|improve this answer
    
Unfortunately that didnt help out my situation, thanks though –  user109394 Nov 20 '12 at 19:32

I'm using the same LapTop (Dell Inspiron 1440) and I had the same problem, and used many ways but with no luck. Until I found this post. http://www.mindwerks.net/2012/06/wireless-bcm4312-with-the-3-4-and-3-5-kernel/

But I modified the last step a little.

After running "make" in terminal, I followed this step using the Readme file from this address: http://www.broadcom.com/support/802.11/linux_sta.php

"

2: Insmod the driver.

Otherwise, if you have not previously installed a wl driver, you'll need to add a security module before using the wl module. Most newer systems use lib80211 while others use ieee80211_crypt_tkip. See which one works for your system.

modprobe lib80211

or

modprobe ieee80211_crypt_tkip

If your using the cfg80211 version of the driver, then cfg80211 needs to be loaded:

modprobe cfg80211

Then:

insmod wl.ko

wl.ko is now operational. It may take several seconds for the Network Manager to notice a new network driver has been installed and show the surrounding wireless networks."

And if you encountered an error, this README file has solutions for a couple of them.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

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