No Wifi after 12.04 upgrade, why?

What is the output of:

sudo lshw -C network; lsb_release -a; uname -a; sudo rfkill list; dmesg | grep -i firm

Thanks

Hi,

Please first connect your wired network adapter to the wireless router using an ethernet cable (also known as a LAN cable).

In order to gather essential troubleshooting information about your wireless card, please follow this procedure:

Step 1:

If you are using the Gnome interface, open the Terminal console via "Applications->Accessories->Terminal"

If you are using the Unity interface, the easiest way to open the Terminal is to use the 'search' function on the dash. Or you can click on the 'More Apps' button, click on the 'See more results' by the installed section, and find it in that list of applications. A third way, available after you click on the 'More Apps' button, is to go to the search bar, and see that the far right end of it says 'All Applications'. You then click on that, and you'll see the full list. Then you can go to Accessories > Terminal after that.

The methods in Unity are:
Press Control-ALT-T key combination.
Dash > Search for Terminal
Dash > More Apps > 'See More Results' > Terminal
Dash > More Apps > Accessories > Terminal

Step 2: Please copy-paste the following command from https://help.ubuntu.com/community/WirelessTroubleshootingProcedure in Firefox into the Linux Terminal. Do NOT copy-paste from the Email message into the Terminal, as that will only copy PART of the command. The command STARTS with the word sudo and ENDS with the word lsmod. So please copy-paste the ENTIRE command below from Firefox into a Terminal, press <enter>, then enter password when sudo asks for password, then press enter again.

Tip: If you have a wheel mouse or 3 button mouse you do not need to type commands into the Terminal. Highlight the command written on the page. Move your cursor anywhere in the Terminal and press the wheel or middle button. Automatic Copy and paste! No spelling mistakes! No Typos! No other errors!

sudo apt-get update; sudo apt-get install hwinfo grep rfkill; sudo lshw -C network; rfkill list; sudo iwlist scanning; cat /etc/network/interfaces; cat /etc/lsb-release; lspci -nn; lsusb; sudo lshw -short; uname -a; dmesg | egrep 'acx|at76|ath|b43|bcm|brcm|CX|eth|ipw|ireless|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|ound|p54|prism|rtl|rt2|rt3|rt5|rt6|rt7|usb|witch|wl';sudo dmidecode|egrep 'anufact|roduct|erial|elease'; iwconfig; cat /etc/modprobe.d/* | egrep 'acx|at76|ath|b43|bcm|brcm|CX|eth|ipw|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|p54|prism|rtl|rt2|rt3|rt6|rt7|wmi|witch|wl'; cat /var/lib/NetworkManager/NetworkManager.state; sudo hwinfo --netcard ; ps -aux|egrep 'wpa|icd|etwork'; sudo lsmod

Step 3: Please post results (copy/paste terminal output) on this thread. The troubleshooters here need to see the full Terminal output from running the above command.

Step 4: Please also specify the exact model and make of your PC (if known) on this thread

Step 5: Please also clarify if you installed Ubuntu to the harddisk and are running from a harddisk install OR if you are only testing Ubuntu in a LiveCD session.

Regards,

Mark

Hi Mark. I copy and pasted the command you suggested above. Here are the results which I am unable to interprete. THX for your help...

Get:16 http://us.archive.ubuntu.com precise-updates/main i386 Packages [379 kB]
Get:17 http://security.ubuntu.com precise-security/restricted i386 Packages [3,968 B]
Get:18 http://security.ubuntu.com precise-security/main i386 Packages [162 kB]
Get:19 http://us.archive.ubuntu.com precise-updates/universe i386 Packages [127 kB]
Get:20 http://security.ubuntu.com precise-security/universe i386 Packages [41.6 kB]
Hit http://us.archive.ubuntu.com precise-updates/main TranslationIndex
Hit http://us.archive.ubuntu.com precise-updates/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise-updates/universe TranslationIndex
Hit http://us.archive.ubuntu.com natty-backports/main Sources
Hit http://us.archive.ubuntu.com natty-backports/restricted Sources
Hit http://us.archive.ubuntu.com natty-backports/universe Sources
Hit http://us.archive.ubuntu.com natty-backports/multiverse Sources
Hit http://us.archive.ubuntu.com precise/main Translation-en
Hit http://us.archive.ubuntu.com precise/restricted Translation-en
Hit http://security.ubuntu.com precise-security/main TranslationIndex
Hit http://security.ubuntu.com precise-security/restricted TranslationIndex
Hit http://security.ubuntu.com precise-security/universe TranslationIndex
Hit http://us.archive.ubuntu.com precise/universe Translation-en
Hit http://us.archive.ubuntu.com precise-updates/main Translation-en
Hit http://us.archive.ubuntu.com precise-updates/restricted Translation-en
Hit http://us.archive.ubuntu.com precise-updates/universe Translation-en
Hit http://security.ubuntu.com precise-security/main Translation-en
Hit http://security.ubuntu.com precise-security/restricted Translation-en
Hit http://security.ubuntu.com precise-security/universe Translation-en
Ign http://extras.ubuntu.com precise/main Translation-en_US
Ign http://extras.ubuntu.com precise/main Translation-en
Fetched 1,111 kB in 5s (190 kB/s)
Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
grep is already the newest version.
rfkill is already the newest version.
The following NEW packages will be installed:
  hwinfo libhal1 libhd16
0 upgraded, 3 newly installed, 0 to remove and 0 not upgraded.
Need to get 776 kB of archives.
After this operation, 2,235 kB of additional disk space will be used.
Get:1 http://us.archive.ubuntu.com/ubuntu/ precise/universe libhal1 i386 0.5.14-8 [76.8 kB]
Get:2 http://us.archive.ubuntu.com/ubuntu/ precise/universe libhd16 i386 16.0-2.1 [681 kB]
Get:3 http://us.archive.ubuntu.com/ubuntu/ precise/universe hwinfo i386 16.0-2.1 [18.2 kB]
Fetched 776 kB in 1s (644 kB/s)
Selecting previously unselected package libhal1.
(Reading database ... 201302 files and directories currently installed.)
Unpacking libhal1 (from .../libhal1_0.5.14-8_i386.deb) ...
Selecting previously unselected package libhd16.
Unpacking libhd16 (from .../libhd16_16.0-2.1_i386.deb) ...
Selecting previously unselected package hwinfo.
Unpacking hwinfo (from .../hwinfo_16.0-2.1_i386.deb) ...
Processing triggers for man-db ...
Setting up libhal1 (0.5.14-8) ...
Setting up libhd16 (16.0-2.1) ...
Setting up hwinfo (16.0-2.1) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
  *-network:0
       description: Ethernet interface
       product: 3c905C-TX/TX-M [Tornado]
       vendor: 3Com Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 78
       serial: 00:06:5b:e0:9e:b9
       size: 100Mbit/s
       capacity: 100Mbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=3c59x duplex=full ip=192.168.1.3 latency=32 link=yes maxlatency=10 mingnt=10 multicast=yes port=MII speed=100Mbit/s
       resources: irq:11 ioport:ec80(size=128) memory:f8fffc00-f8fffc7f memory:f9000000-f901ffff
  *-network:1
       description: Wireless interface
       product: PRO/Wireless LAN 2100 3B Mini PCI Adapter
       vendor: Intel Corporation
       physical id: 3
       bus info: pci@0000:02:03.0
       logical name: eth2
       version: 04
       serial: 00:0c:f1:3f:05:ec
       width: 32 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ipw2100 driverversion=git-1.2.2 firmware=712.0.3:3:00000001 latency=32 link=no maxlatency=34 mingnt=2 multicast=yes wireless=unassociated
       resources: irq:5 memory:f8ffe000-f8ffefff
0: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no
lo Interface doesn't support scanning.

eth2 Scan completed :
          Cell 01 - Address: 00:22:10:80:03:70
                    ESSID:"myqwest3008"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Frequency:2.412 GHz (Channel 1)
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 6 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Quality:37 Signal level:0 Noise level:0
                    Extra: Last beacon: 9248ms ago
          Cell 02 - Address: E0:91:F5:BB:C2:7F
                    ESSID:"reynosa"
                    Protocol:IEEE 802.11g
                    Mode:Master
                    Frequency:2.417 GHz (Channel 2)
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Quality:96 Signal level:0 Noise level:0
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
                    Extra: Last beacon: 172ms ago
          Cell 03 - Address: 98:FC:11:67:05:82
                    ESSID:"QuietSpruce-guest"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Frequency:2.437 GHz (Channel 6)
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Quality:16 Signal level:0 Noise level:0
                    Extra: Last beacon: 1940ms ago
          Cell 04 - Address: 98:FC:11:67:05:81
                    ESSID:"QuietSpruce"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Frequency:2.437 GHz (Channel 6)
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Quality:18 Signal level:0 Noise level:0
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    Extra: Last beacon: 1944ms ago
          Cell 05 - Address: 20:76:00:55:74:34
                    ESSID:"Home"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Frequency:2.452 GHz (Channel 9)
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Quality:18 Signal level:0 Noise level:0
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    Extra: Last beacon: 3248ms ago
          Cell 06 - Address: 00:1C:DF:53:31:56
                    ESSID:"lmoregon"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Frequency:2.437 GHz (Channel 6)
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Quality:18 Signal level:0 Noise level:0
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    Extra: Last beacon: 13320ms ago

eth0 Interface doesn't support scanning.

auto lo
iface lo inet loopback

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS"
00:00.0 Host bridge [0600]: Intel Corporation 82830 830 Chipset Host Bridge [8086:3575] (rev 04)
00:01.0 PCI bridge [0604]: Intel Corporation 82830 830 Chipset AGP Bridge [8086:3576] (rev 04)
00:1d.0 USB controller [0c03]: Intel Corporation 82801CA/CAM USB Controller #1 [8086:2482] (rev 02)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev 42)
00:1f.0 ISA bridge [0601]: Intel Corporation 82801CAM ISA Bridge (LPC) [8086:248c] (rev 02)
00:1f.1 IDE interface [0101]: Intel Corporation 82801CAM IDE U100 Controller [8086:248a] (rev 02)
00:1f.5 Multimedia audio controller [0401]: Intel Corporation 82801CA/CAM AC'97 Audio Controller [8086:2485] (rev 02)
00:1f.6 Modem [0703]: Intel Corporation 82801CA/CAM AC'97 Modem Controller [8086:2486] (rev 02)
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI RV100 LY [Mobility Radeon 7000] [1002:4c59]
02:00.0 Ethernet controller [0200]: 3Com Corporation 3c905C-TX/TX-M [Tornado] [10b7:9200] (rev 78)
02:01.0 CardBus bridge [0607]: Texas Instruments PCI1420 PC card Cardbus Controller [104c:ac51]
02:01.1 CardBus bridge [0607]: Texas Instruments PCI1420 PC card Cardbus Controller [104c:ac51]
02:03.0 Network controller [0280]: Intel Corporation PRO/Wireless LAN 2100 3B Mini PCI Adapter [8086:1043] (rev 04)
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 046d:c52f Logitech, Inc. Wireless Mouse M305
H/W path Device Class Description
=========================================================
                               system Portable Computer
/0 bus Latitude C510
/0/0 memory 64KiB BIOS
/0/400 processor Mobile Intel(R) Celeron(TM) CPU
/0/400/700 memory 32KiB L1 cache
/0/400/701 memory 256KiB L2 cache
/0/1000 memory 1GiB System Memory
/0/1000/0 memory 512MiB DIMM DRAM Synchronous
/0/1000/1 memory 512MiB DIMM DRAM Synchronous
/0/100 bridge 82830 830 Chipset Host Bridge
/0/100/1 bridge 82830 830 Chipset AGP Bridge
/0/100/1/0 display RV100 LY [Mobility Radeon 7000]
/0/100/1d bus 82801CA/CAM USB Controller #1
/0/100/1e bridge 82801 Mobile PCI Bridge
/0/100/1e/0 eth0 network 3c905C-TX/TX-M [Tornado]
/0/100/1e/1 bridge PCI1420 PC card Cardbus Controller
/0/100/1e/1.1 bridge PCI1420 PC card Cardbus Controller
/0/100/1e/3 eth2 network PRO/Wireless LAN 2100 3B Mini PCI
/0/100/1f bridge 82801CAM ISA Bridge (LPC)
/0/100/1f.1 scsi0 storage 82801CAM IDE U100 Controller
/0/100/1f.1/0 /dev/sda disk 160GB Hitachi HTS54161
/0/100/1f.1/0/1 /dev/sda1 volume 148GiB EXT4 volume
/0/100/1f.1/0/2 /dev/sda2 volume 1022MiB Extended partition
/0/100/1f.1/0/2/5 /dev/sda5 volume 1022MiB Linux swap / Solaris parti

To: Actionparsnip. Here is the added output you requested....I don't know what I'm looking for with this output? Thank You!

 *-network:0
       description: Ethernet interface
       product: 3c905C-TX/TX-M [Tornado]
       vendor: 3Com Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 78
       serial: 00:06:5b:e0:9e:b9
       size: 100Mbit/s
       capacity: 100Mbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=3c59x duplex=full ip=192.168.1.3 latency=32 link=yes maxlatency=10 mingnt=10 multicast=yes port=MII speed=100Mbit/s
       resources: irq:11 ioport:ec80(size=128) memory:f8fffc00-f8fffc7f memory:f9000000-f901ffff
  *-network:1
       description: Wireless interface
       product: PRO/Wireless LAN 2100 3B Mini PCI Adapter
       vendor: Intel Corporation
       physical id: 3
       bus info: pci@0000:02:03.0
       logical name: eth2
       version: 04
       serial: 00:0c:f1:3f:05:ec
       width: 32 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ipw2100 driverversion=git-1.2.2 firmware=712.0.3:3:00000001 latency=32 link=no maxlatency=34 mingnt=2 multicast=yes wireless=unassociated
       resources: irq:5 memory:f8ffe000-f8ffefff
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.1 LTS
Release: 12.04
Codename: precise
Linux isabel 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:04:05 UTC 2012 i686 i686 i386 GNU/Linux
0: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no
[ 17.525420] IBM TrackPoint firmware: 0x0b, buttons: 2/3

ok and the output of:

ifconfig eth2 | grep eth2

Thanks

Basically your adapter has moved to eth1 instead of wlan0 which network manager uses. You can install wicd and uninstall network manager (wicd is more flexible than network manager and can be told to use eth2 for wifi), or we can make a udev rule to tell the OS to name the adapter as wlan0 and network manager will run fine.

Mr. Actionparsnip. Do I install WICD from the Synaptic Package Manager section?

I just realize 12.04 doesn't have Synaptic Package Manager. Where do I download WICD?

Synaptic Package Manager and WICD are in Ubuntu Software Center.

I found Wicd Network Manager and installed it, I clicked on properties but wasn't able to fill in the correct info needed. What steps should I take from this point?

In the preferences, you can set to use eth2 as the wireless device.;

I have typed in "eth2" as my wireless device. Still no positive results...

Can you give the output of:

ifconfig

Thanks

Mr. ACTIONPARSNIP, Here is the results of "ifconfig" listed below by your request...

chavela@isabel:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:06:5b:e0:9e:b9
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
          Interrupt:11 Base address:0xac00

eth2 Link encap:Ethernet HWaddr 00:0c:f1:3f:05:ec
          inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0
          inet6 addr: fe80::20c:f1ff:fe3f:5ec/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:1314 errors:1 dropped:1 overruns:0 frame:0
          TX packets:1404 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:981185 (981.1 KB) TX bytes:195343 (195.3 KB)
          Interrupt:5 Base address:0x8000 Memory:f8ffe000-f8ffefff

lo Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING MTU:16436 Metric:1
          RX packets:194 errors:0 dropped:0 overruns:0 frame:0
          TX packets:194 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:18444 (18.4 KB) TX bytes:18444 (18.4 KB)

chavela@isabel:~$

Run:

gksudo gedit /etc/udev/rules.d/70-persistent-net.rules

add the below line:

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:f1:3f:05:ec", ATTR{type =="1", KERNEL=="eth*", NAME="wlan0"

It is all ONE LINE. Save the new file, close gedit and reboot. Your eth2 will now be wlan0

Actionparsnip, I tied to run the command you suggested above, but nothing happen... Then after signing on again after updating to the existing 12.04, this is what it said below. It won't allow me to go any further at this point.

                                                          GNU GRUB version 1.99-21ubuntu3.1

                              Minimal BASH-like line editing is supported. For the first word, TAB
                              lists possible command completions. Anywhere else TAB lists possible
                              device or file completions.

                      grub>

Changing the rule won't change the boot, try:

http://www.omgubuntu.co.uk/2011/09/live-usb-sticking-grub-2-video

Actionparsnip, I'm still battling with the no wifi connection, any more suggestion?

I exchanged the internal wifi card to a different brand, (from Intel to Broadcom) that was the problem...