wireless connection

Question

Since getting a Linksys E900 router Ubuntu 12.04 will not connect, same laptop (dual boot) Windows 7 does connect, same laptop, different house Ubuntu does connect. first router Linksys E900 firmware 10.0.03, second router Linksys E1500 firmware 10.0.0. Wireless card is a Broadcom and driver is installed. I'm thinking there is something in the firmware upgrade that needs to be addressed in the network manager's software. Both router's security is WPA2 Personal. Please help.

02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
wl                   2906597  0 
cfg80211              178877  1 wl
lib80211               14040  2 lib80211_crypt_tkip,wl
lo        no wireless extensions.

eth1      IEEE 802.11abg  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          
eth0      no wireless extensions.

I ran the commands and rebooted and still no connection, see terminal output below:

dmcd@dmcd-Presario-CQ62-Notebook-PC:~$ sudo modprobe -r wl 
[sudo] password for dmcd: 
dmcd@dmcd-Presario-CQ62-Notebook-PC:~$ sudo apt-get remove --purge bcmwl-kernel-source 
Reading package lists... Done 
Building dependency tree       
Reading state information... Done 
The following packages will be REMOVED: 
  bcmwl-kernel-source* 
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. 
After this operation, 3,656 kB disk space will be freed. 
Do you want to continue [Y/n]? Y 
(Reading database ... 170284 files and directories currently installed.) 
Removing bcmwl-kernel-source ... 
Removing all DKMS Modules 
Done. 
update-initramfs: deferring update (trigger activated) 
Purging configuration files for bcmwl-kernel-source ... 
update-initramfs: deferring update (trigger activated) 
Processing triggers for initramfs-tools ... 
update-initramfs: Generating /boot/initrd.img-3.2.0-49-generic 
dmcd@dmcd-Presario-CQ62-Notebook-PC:~$ sudo modprobe brcsmac 
FATAL: Module brcsmac not found. 
dmcd@dmcd-Presario-CQ62-Notebook-PC:~$

EDIT

now I have a false connect, see terminal output below:

nm-tool output:

dmcd@dmcd-Presario-CQ62-Notebook-PC:~$ nm-tool

NetworkManager Tool

State: connected (global)

- Device: wlan0  [McCisco] -----------------------------------------------------
  Type:              802.11 WiFi
  Driver:            brcmsmac
  State:             connected
  Default:           no
  HW Address:        00:26:82:99:44:D3

  Capabilities:
    Speed:           1 Mb/s

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points (* = current AP)
    Thomson5A1815:   Infra, 00:24:17:BC:E5:77, Freq 2462 MHz, Rate 54 Mb/s, Strength 75 WPA
    McKay:           Infra, 00:18:F8:3E:D5:B6, Freq 2437 MHz, Rate 54 Mb/s, Strength 45 WPA
    OWNER-PC_Network:Infra, 90:F6:52:C3:11:56, Freq 2412 MHz, Rate 54 Mb/s, Strength 39 WPA WPA2
    BELL586:         Infra, 2C:E4:12:90:59:79, Freq 2452 MHz, Rate 54 Mb/s, Strength 39 WPA WPA2
    belkinSP:        Infra, 00:17:3F:5A:5E:16, Freq 2462 MHz, Rate 54 Mb/s, Strength 39 WPA
    Bogdan:          Infra, 50:3D:E5:30:A5:50, Freq 2437 MHz, Rate 54 Mb/s, Strength 24 WPA2
    galacticempire:  Infra, 28:CF:DA:B7:6E:4F, Freq 2457 MHz, Rate 54 Mb/s, Strength 30 WPA2
    kalana:          Infra, 00:40:F4:E3:D3:12, Freq 2412 MHz, Rate 54 Mb/s, Strength 37 WEP
    cancun1:         Infra, 00:26:5A:C8:E9:7D, Freq 2437 MHz, Rate 54 Mb/s, Strength 30 WEP
    BELL768:         Infra, 00:26:50:9E:03:91, Freq 2462 MHz, Rate 54 Mb/s, Strength 24 WEP
    *McCisco:        Infra, C8:D7:19:CF:3F:7A, Freq 2462 MHz, Rate 54 Mb/s, Strength 58 WPA2
    Leano Wireless:  Infra, 34:EF:44:97:CB:C1, Freq 2437 MHz, Rate 54 Mb/s, Strength 19 WPA
    NETGEAR-3G:      Infra, C4:3D:C7:6A:FA:3C, Freq 2417 MHz, Rate 54 Mb/s, Strength 17 WPA2
    BELL513:         Infra, 3C:EA:4F:BC:AB:31, Freq 2437 MHz, Rate 54 Mb/s, Strength 24 WEP

  IPv6 Settings:
    Address:         fd11:cc97:526d:0:71e5:7a5d:3419:d561
    Prefix:          64
    Gateway:         ::

    Address:         fd11:cc97:526d:0:226:82ff:fe99:44d3
    Prefix:          64
    Gateway:         ::

    Address:         fe80::226:82ff:fe99:44d3
    Prefix:          64
    Gateway:         ::



- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             unavailable
  Default:           no
  HW Address:        C8:0A:A9:C8:17:65

  Capabilities:
    Carrier Detect:  yes
    Speed:           100 Mb/s

  Wired Properties
    Carrier:         off

route -n output:

dmcd@dmcd-Presario-CQ62-Notebook-PC:~$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface

Here are outputs from the nm-tool command while trying to connect and after failed connect:

dmcd@dmcd-Presario-CQ62-Notebook-PC:~$ nm-tool

NetworkManager Tool

State: connecting

- Device: wlan0  [McCisco] -----------------------------------------------------
  Type:              802.11 WiFi
  Driver:            brcmsmac
  State:             connecting (getting IP configuration)
  Default:           no
  HW Address:        00:26:82:99:44:D3

  Capabilities:

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points 
    Thomson5A1815:   Infra, 00:24:17:BC:E5:77, Freq 2462 MHz, Rate 54 Mb/s, Strength 59 WPA
    McKay:           Infra, 00:18:F8:3E:D5:B6, Freq 2437 MHz, Rate 54 Mb/s, Strength 42 WPA
    OWNER-PC_Network:Infra, 90:F6:52:C3:11:56, Freq 2412 MHz, Rate 54 Mb/s, Strength 39 WPA WPA2
    belkinSP:        Infra, 00:17:3F:5A:5E:16, Freq 2462 MHz, Rate 54 Mb/s, Strength 39 WPA
    BELL586:         Infra, 2C:E4:12:90:59:79, Freq 2452 MHz, Rate 54 Mb/s, Strength 37 WPA WPA2
    galacticempire:  Infra, 28:CF:DA:B7:6E:4F, Freq 2457 MHz, Rate 54 Mb/s, Strength 30 WPA2
    kalana:          Infra, 00:40:F4:E3:D3:12, Freq 2412 MHz, Rate 54 Mb/s, Strength 40 WEP
    cancun1:         Infra, 00:26:5A:C8:E9:7D, Freq 2437 MHz, Rate 54 Mb/s, Strength 30 WEP
    BELL768:         Infra, 00:26:50:9E:03:91, Freq 2462 MHz, Rate 54 Mb/s, Strength 22 WEP
    NETGEAR-3G:      Infra, C4:3D:C7:6A:FA:3C, Freq 2417 MHz, Rate 54 Mb/s, Strength 27 WPA2
    McCisco:         Infra, C8:D7:19:CF:3F:7A, Freq 2462 MHz, Rate 54 Mb/s, Strength 64 WPA2


- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             unavailable
  Default:           no
  HW Address:        C8:0A:A9:C8:17:65

  Capabilities:
    Carrier Detect:  yes
    Speed:           100 Mb/s

  Wired Properties
    Carrier:         off


dmcd@dmcd-Presario-CQ62-Notebook-PC:~$ nm-tool

NetworkManager Tool

State: disconnected

- Device: wlan0 ----------------------------------------------------------------
  Type:              802.11 WiFi
  Driver:            brcmsmac
  State:             disconnected
  Default:           no
  HW Address:        00:26:82:99:44:D3

  Capabilities:

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points 
    Thomson5A1815:   Infra, 00:24:17:BC:E5:77, Freq 2462 MHz, Rate 54 Mb/s, Strength 59 WPA
    McKay:           Infra, 00:18:F8:3E:D5:B6, Freq 2437 MHz, Rate 54 Mb/s, Strength 42 WPA
    OWNER-PC_Network:Infra, 90:F6:52:C3:11:56, Freq 2412 MHz, Rate 54 Mb/s, Strength 39 WPA WPA2
    belkinSP:        Infra, 00:17:3F:5A:5E:16, Freq 2462 MHz, Rate 54 Mb/s, Strength 39 WPA
    BELL586:         Infra, 2C:E4:12:90:59:79, Freq 2452 MHz, Rate 54 Mb/s, Strength 37 WPA WPA2
    galacticempire:  Infra, 28:CF:DA:B7:6E:4F, Freq 2457 MHz, Rate 54 Mb/s, Strength 30 WPA2
    kalana:          Infra, 00:40:F4:E3:D3:12, Freq 2412 MHz, Rate 54 Mb/s, Strength 40 WEP
    cancun1:         Infra, 00:26:5A:C8:E9:7D, Freq 2437 MHz, Rate 54 Mb/s, Strength 30 WEP
    BELL768:         Infra, 00:26:50:9E:03:91, Freq 2462 MHz, Rate 54 Mb/s, Strength 24 WEP
    NETGEAR-3G:      Infra, C4:3D:C7:6A:FA:3C, Freq 2417 MHz, Rate 54 Mb/s, Strength 27 WPA2
    McCisco:         Infra, C8:D7:19:CF:3F:7A, Freq 2462 MHz, Rate 54 Mb/s, Strength 64 WPA2


- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             unavailable
  Default:           no
  HW Address:        C8:0A:A9:C8:17:65

  Capabilities:
    Carrier Detect:  yes
    Speed:           100 Mb/s

  Wired Properties
    Carrier:         off

Please edit your question to add some additional details: lspci -nn | grep 0280; lsmod | grep -e wl -e b43 -e brcmsmac; iwconfig — chili555, Jul 28, 2013 at 16:18
Please edit your question to conform to some kind of grammar. I wasn’t able to parse it. — MPi, Jul 28, 2013 at 16:44

chili555 · Accepted Answer · 2013-07-28 19:21:10Z

1

I believe that the driver wl is incorrect for your device 14e4:4727. Please open a terminal and do:

sudo modprobe -r wl
sudo apt-get remove --purge bcmwl-kernel-source
sudo modprobe brcmsmac

You wireless should be working now; however, it might take a reboot.

answered Jul 28, 2013 at 19:21

chili555

60.2k8 gold badges95 silver badges129 bronze badges

It is not brcsmac; it is brcmsmac.
– chili555
Jul 28, 2013 at 20:19
Right you are, I noticed my mistake right after editing, and ran the proper command. I got a false connection, looked good on the screen but wouldn't open a browser.
– user137024
Jul 28, 2013 at 20:35
I took the laptop out to the local coffee shop and connected to their free wifi right away, I still think there is something new in Cisco's 10.0.03 firmware.
– user137024
Jul 28, 2013 at 20:40
When you have a "false connection," please run and post: nm-tool and also route -n. Do you have any DNS nameservers set up in your router as I do? Please see: dl.dropboxusercontent.com/u/58267392/router_DNS.png
– chili555
Jul 28, 2013 at 23:32
1

@user137024 you just attempted to edit chili's answer to include your nm-tool and route -n output. You should edit your own question, not the answer. I have went ahead and edited your question to include the output on your behalf, but just remember that you need to edit your question =).
– Alaa Ali
Jul 29, 2013 at 14:16

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