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Thread: Can't connect to internet (wireless)

  1. #1
    Join Date
    Apr 2009
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    3

    Can't connect to internet (wireless)

    Hey, I've got a bit of a problem.

    Ubuntu will not connect to the internet.

    I've checked google, but nothing seems to help.

    Now let me elaborate:
    I've got my laptop set up to multi-boot Vista, Ubuntu, and Windows 7 Beta. Internet connects flawlessly on Windows, but Ubuntu can't connect.

    My router isn't listed in the list of connections, but that makes sense, since it is normally hidden. So if I enter my information manually, it will just sit there for about a minute, then ask me to re-input my WEP code, and continue this cycle a few times before disconnecting.

    Could it be a driver thing? Or something else, perhaps?

    I'm pretty new to Ubuntu, so maybe there's just something I'm missing...

    Thanks for any help.

  2. #2
    Join Date
    Apr 2009
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    1,173

    Re: Can't connect to internet (wireless)

    In Ubuntu 8.10 there is a new menu item on the wireless manager to "Connect to hidden wireless network". In earlier versions you might manage to use the "Create new wireless network" option - the network manager is supposed to connect if you type in the SSID.

    Neither worked for me, but switching on the SSID broadcast on the router allows connection. Then switch it back to hidden and network manager still connects. In 8.10 though it seems a hidden network will not work using WPA but will with WEP.

  3. #3
    Join Date
    Mar 2008
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    Re: Can't connect to internet (wireless)

    hi Gollum999,

    yep wireless can be a challenge. Have you tried to Connect to Hidden Wireless Network as StuartN suggested?

    For a deeper insight into your network status please open up the terminal and post the outputs of these terminal commands here:

    Code:
    iwconfig
    sudo iwlist scan
    sudo lshw -C network
    cat /etc/network/interfaces
    Keep it real. Keep it nice.
    [SIGPIC][/SIGPIC]Shooting Ubuntu



  4. #4
    Join Date
    Apr 2009
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    3

    Re: Can't connect to internet (wireless)

    Wow, thanks for the fast response. Most other forums take days before someone tries to help.

    I tried using Connect to Hidden Wireless Network, but it does the same thing. I haven't tried broadcasting the SSID yet, I'll see if I can try that in a bit.

    I tried those console commands:

    "iwconfig" returned:

    Code:
    lo        no wireless extensions.
    
    eth0      no wireless extensions.
    
    eth1      IEEE 802.11  Nickname:""
              Access Point: Not-Associated   
              
    pan0      no wireless extensions.
    -----

    "sudo iwlist scan" returned:

    Code:
    lo        Interface doesn't support scanning.
    
    eth0      Interface doesn't support scanning.
    
    eth1      Scan completed :
              Cell 01 - Address: 00:22:A4:1F:CE:69
                        ESSID:""
                        Mode:Managed
                        Frequency:2.432 GHz (Channel 5)
                        Quality:5/5  Signal level:-47 dBm  Noise level:-24 dBm
                        IE: WPA Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (1) : TKIP
                            Authentication Suites (1) : PSK
                        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
              Cell 02 - Address: 00:0F:66:47:CB:E0
                        ESSID:"linksysRPL"
                        Mode:Managed
                        Frequency:2.437 GHz (Channel 6)
                        Quality:1/5  Signal level:-86 dBm  Noise level:-19 dBm
                        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
              Cell 03 - Address: 00:22:A4:1F:CE:69
                        ESSID:" "
                        Mode:Managed
                        Frequency:2.432 GHz (Channel 5)
                        Quality:5/5  Signal level:-48 dBm  Noise level:-24 dBm
                        IE: WPA Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (1) : TKIP
                            Authentication Suites (1) : PSK
                        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
              Cell 04 - Address: 00:21:29:92:54:8F
                        ESSID:"Lawler"
                        Mode:Managed
                        Frequency:2.437 GHz (Channel 6)
                        Quality:1/5  Signal level:-84 dBm  Noise level:-19 dBm
                        Encryption key:on
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                                  24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
                                  12 Mb/s; 48 Mb/s
              Cell 05 - Address: 00:18:39:58:D0:BB
                        ESSID:"linksys"
                        Mode:Managed
                        Frequency:2.437 GHz (Channel 6)
                        Quality:1/5  Signal level:-87 dBm  Noise level:2 dBm
                        Encryption key:off
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                                  24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
                                  12 Mb/s; 48 Mb/s
              Cell 06 - Address: 00:22:A4:81:39:69
                        ESSID:"2WIRE009"
                        Mode:Managed
                        Frequency:2.442 GHz (Channel 7)
                        Quality:1/5  Signal level:-86 dBm  Noise level:-90 dBm
                        IE: WPA Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (1) : TKIP
                            Authentication Suites (1) : PSK
                        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
    
    pan0      Interface doesn't support scanning.
    -----

    "sudo lshw -C network" returned:

    Code:
      *-network               
           description: Wireless interface
           product: BCM4312 802.11b/g
           vendor: Broadcom Corporation
           physical id: 0
           bus info: pci@0000:0c:00.0
           logical name: eth1
           version: 01
           serial: 00:16:44:d3:ff:cf
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
           configuration: broadcast=yes driver=wl latency=0 module=wl multicast=yes wireless=IEEE 802.11bg
      *-network
           description: Ethernet interface
           product: NetLink BCM5906M Fast Ethernet PCI Express
           vendor: Broadcom Corporation
           physical id: 0
           bus info: pci@0000:09:00.0
           logical name: eth0
           version: 02
           serial: 00:1e:c9:07:d0:00
           capacity: 100MB/s
           width: 64 bits
           clock: 33MHz
           capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.94 latency=0 link=no module=tg3 multicast=yes port=twisted pair
      *-network DISABLED
           description: Ethernet interface
           physical id: 2
           logical name: pan0
           serial: be:09:2c:3f:7f:27
           capabilities: ethernet physical
           configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A link=yes multicast=yes
    -----

    and "cat /etc/network/interfaces" returned:

    Code:
    auto lo
    iface lo inet loopback
    -----

    So.... now what?
    Last edited by Gollum999; April 10th, 2009 at 04:31 AM.

  5. #5
    Join Date
    Jan 2007
    Beans
    5,549

    Re: Can't connect to internet (wireless)

    dont you see a list of networks when you click on the network symbol ( two computer monitors ) at the top bar to the right? .. and when you select WEP.. try various combinations for the 64bit,128 bit etc..

  6. #6
    Join Date
    Apr 2009
    Beans
    3

    Re: Can't connect to internet (wireless)

    Okay, I got it working. I turned on SSID broadcast, and Ubuntu connected almost immediately.

    Thanks for the help, guys!

    Now I'm just wondering... am I going to have to leave SSID broadcast on? I mean, I turned it back off, and it stayed connected, but if I restart the computer will it lose the connection again?

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