View Full Version : [ubuntu] After install Ubuntu 11.04... No network nor wireless connection

July 28th, 2011, 04:50 PM

Here is the story of what happened...

I installed Jolicloud OS with Windows XP before because Windows XP have too many virus to attachment to Internet so whenever I go on the internet, most of the link take us to random site so I just installed Jolicloud OS however, some reason, I don't like Jolicloud very much because it require to enter the user name and password to link Jolicloud so wasted my time to use it... Its cool but pointless.

So, I just realised Ubuntu also provided free Ubuntu OS for netbook. After I downloaded Ubuntu desktop 11.04 and installed the system (all the datas is now gone and only current OS is Ubuntu)

So, once I installed it... The netbook seem running well and no problem however, there is a huge problem is wireless are not found so I can't even use the Internet!.

This netbook only got wireless and nothing else to connect like cable (wired).

Mine wireless called...
01:00.0 Network Controller [0280]: Broadcom corporation BCM4312 802.11b/g LP-PHY

I don't even know how to fix it and I can't even installed what I followed other people tried to.

I hope someone tell me how to fix it so I can go on the internet once again :D


July 28th, 2011, 06:11 PM
No one cared bout me :'(

I spend a lots of time to figuring it out how to fix it and no luck!...
Shall I re-install it?... I downloaded alternate version so shall I try this to see if it work?


July 28th, 2011, 09:00 PM
It seem nobody really care bout it... I trying my best to fixing the wireless and yet, I went nut... I don't want waste my time to sit down and search for it to try different way without connecting to internet for package driver.

Can you please tell me how to fix it... Those word are too advance and I'm noob!... It kinda well out of order not support others member of people who want to fix it.

I am sorry if I speak like this but... I seriously want simple fix it asap!

July 28th, 2011, 09:45 PM
Okay, I checked on this one...


And I am on the b43 - No Internet access, therefore I follow right way until step 2... The link does not work!... I was close to done without ur help :-(
Can someone please fix the link so i can download it again

July 28th, 2011, 10:55 PM
Hi, please run these commands in a terinal

sudo lshw -C network

lspci -nn | grep 0280


rfkill list all

and post the outcome here by clicking on new reply and click # and paste the information between the brackets.
Thank you

July 29th, 2011, 07:30 PM
Ah, at last someone save my life!... :D
Okay, I am using different computer to use an Internet so the netbook right next to me... :-)

sudo lshw -C network

description: Network controller
product: BCM4312 802.11b/g LP-PHY
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: 01
width: 64 bits
clock 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver-b43-pci-bridge latency=0
resources: irq:16 memory:feafc000-feafffff
description: Ethernet interface
product: 88E8040 PCI-E Fast Ethernet Controller
vendor: Marvell Technology Group Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth0
version: 00
width: 64 bits
clock 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100-bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.28 firmware=N/A latency=0 link=no multicast=yes port=twisted pair
resources: irq:42 memory:febfc000-febfffff ioport:ec00(size=256)
*-network DISABLED
description: Wireless interface
physical id: 1
logical name: wlan0
serial: 00:24:2b:7d:4d:7c
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=b43 driverversion=2.6.38-8-generic firmware=N/A link=no multicast=yes wireless=IEEE 802.11bg

lspci -nn | grep 0280

01:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)


lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bg ESSID:off/any
Mode: Managed Access Point: Not-Associated Tx-Power=0 dBm
Retry Long limit: 7 RTS the:off Fragment the:off
Power Management:off

rfkill list all

0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0 Wireless LAN
Soft blocked: no
Hard blocked: no
2: hp-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
3: hp-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no


Module Size Used by
parport_pc 32111 0
ppdev 12849 0
binfmt_misc 13213 1
snd_hda_codec_idt 60537 1
snd_hda_intel 24140 2
arc4 12473 2
and_hda_codec 90901 2 snd_hda_codec_idt,snd_hda_intel
rfcomm 38125 8
snd_hwdep 13274 1 snd_hda_codec
snd_pcm 80244 2 snd_hda_intel,snd_hda_codec
b43 296610 0
i915 450944 3
snd_seq_midi 13132 0
sco 17779 2
bnep 17785 2
snd_rawmidi 25269 1 snd_seq_midi
l2cap 48656 16 rfcomm,bnep
mac80211 257001 1 b43
hp_wmi 13418 0
and_seq_midi_event 14475 1 snd_seq_midi
joydev 17322 0
snd_seq 51291 2 snd_seq_midi,snd_seq_midi_event
sparse_keymap 13666 1 hp_wmi
btusb 18160 2
uvcvideo 66851 0
bluetooth 65565 9 rfcomm,sco,bnep,l2cap,btusb
snd_timer 28659 2 snd_pcm.snd_seq
drm_kms_helper 40745 1 i915
videodev 75143 1 uvcvideo
drm 180037 4 i915,drm_kms_helper
psmouse 73312 0
cfg80211 156212 2 b43,mac80211
snd_seq_device 14110 3 snd_seq_midi,snd_rawmidi,snd_seq
serio_raw 12990 0
snd 55295 13 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_ hwdep,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
i2c_algo_bit 13184 1 i915
video 18951 1 i915
soundcore 12600 1 snd
snd_page_alloc 14073 2 snd_hda_intel,snd_pcm
lp 13349 0
parport 36746 3 parport_pc,ppdev,lp
sky2 49172 0
ssb 45942 1 b43

This is a long to type it up!... So here you can see the code on Ubuntu 11.04
So, I just checked Ethernet cable and it does not work as well!... Does it clash with Wireless?


July 29th, 2011, 07:59 PM
Hi, no it should not keep the wired connection from connecting but while the wired is connected it will over ride the wireless connection.

You are using the wrong driver, it would be a lot easier to fix if the wired connection was working.

You need to uninstall firmware-b43-installer
and install firmware-b43-lpphy-installer instead.

Hi, go to the link and follow the directions for Installing b43fwcutter with out an internet connection.

It is possible after you remove the driver you do not need if you restart your system your wired connection might work.
Thank you

July 29th, 2011, 08:09 PM
Hi, I am a noob and I don't know how to remove the drivers and what you mean restart my system?


July 29th, 2011, 08:17 PM
Hi, open synaptic package manager type bcm or broadcom in the search window after synaptic opens that should show you only the broadcom drivers for your card,look for firmware-b43-installer it will have a green dot next to it, click on it and remove it.

Then make sure your wired connection is plugged in and restart your computer then see if your wired connection is working if not you will need to go to the link I gave you in my last post and follow the directions for installing with out an internet connection.
Thank you