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Thread: no wireless connection - only on home network

  1. #1
    Join Date
    Oct 2006
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    Question no wireless connection - only on home network

    I just got a new Sony Vaio Y series and am dual booting windows 7 and ubuntu 9.1.

    Yesterday I took it to class with me and it connected just fine with the school wifi -

    when I got it home however it won't connect with my wireless network. Neither Ubuntu nor Windows will connect.

    All the other devices on my network work fine (desktop - ubuntu 9.1, old laptop - ubuntu 9.1, PS3) which leads me to believe that I should be able to connect with my new laptop.

    I have mac filtering turned on and I made sure I had entered the right mac address for the laptop, still nothing. I turned mac filtering off and nothing.

    In the list of wireless networks I see my network, i click on it, enter the encryption key, and it just pops up and says network disconected. (yes, i'm sure i'm entering the right key)

    anyone have any ideas? here is some info i pulled from it in case it helps:
    mitchell@mitchell-laptop:~$ sudo lspci | grep -i network
    02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
    mitchell@mitchell-laptop:~$ ifconfig
    eth0 Link encap:Ethernet HWaddr 00:24:be:5e:37:d3
    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:30

    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:33 errors:0 dropped:0 overruns:0 frame:0
    TX packets:33 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:6239 (6.2 KB) TX bytes:6239 (6.2 KB)

    wlan0 Link encap:Ethernet HWaddr 2c:81:58:fd:cc:25
    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)

    wmaster0 Link encap:UNSPEC HWaddr 2C-81-58-FD-CC-25-00-00-00-00-00-00-00-00-00-00
    UP RUNNING MTU:0 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)


    mitchell@mitchell-laptop:~$ ifconfig
    eth0 Link encap:Ethernet HWaddr 00:24:be:5e:37:d3
    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:30

    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:33 errors:0 dropped:0 overruns:0 frame:0
    TX packets:33 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:6239 (6.2 KB) TX bytes:6239 (6.2 KB)

    wlan0 Link encap:Ethernet HWaddr 2c:81:58:fd:cc:25
    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)

    wmaster0 Link encap:UNSPEC HWaddr 2C-81-58-FD-CC-25-00-00-00-00-00-00-00-00-00-00
    UP RUNNING MTU:0 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)

  2. #2
    Join Date
    May 2007
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    UK near Bedford
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    3,481
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    Ubuntu Development Release

    Re: no wireless connection - only on home network

    As your machine works elsewhere it more likely to be a misconfiguration of your router. Have you DHCP enabled on your router? Are the other devices on your network hardwired/wireless?
    PC

    To get a terminal command to put its output into a file use this format
    {terminal command} > {filename}

  3. #3
    Join Date
    Oct 2006
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    179

    Re: no wireless connection - only on home network

    I'm pretty sure DHCP is enabled (it should be, right?) and all of the devices i listed are wireless (except the desktop which is hardwired, but i unpluged it and the wireless card worked fine)

  4. #4
    Join Date
    Jul 2009
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    Ubuntu 9.10 Karmic Koala

    Re: no wireless connection - only on home network

    Yknow, I'm not sure this will help, but I've had to do it maybe twice a year (when I'm messing with my wireless cards):
    **WARNING** Proceed with Caution!!
    Boot into the BIOS menu, and press whichever keys you need to to "Reset to Factory Defaults". This will fix any lower-problems with your wireless, assuming it's the wireless card and not the router.

    /Caution

    The fact that your router connects fine with other computers makes me think it's your laptop. Would you kindly post the output of "iwconfig"? To see if the wireless card is operating at the right levels.
    Potential problems:
    --Permissions problems
    --misconfigured wlan0 connection
    --driver problems?
    Team Ignition Kernel Developer | Firestorm ROM Thunderbolt Manager
    linux-ideapad developer/maintainer for Arch Linux/Ubuntu Linux
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  5. #5
    Join Date
    Jul 2009
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    Ubuntu 9.10 Karmic Koala

    Re: no wireless connection - only on home network

    Team Ignition Kernel Developer | Firestorm ROM Thunderbolt Manager
    linux-ideapad developer/maintainer for Arch Linux/Ubuntu Linux
    NT-Sparkkernel Developer for the Nook Tablet

  6. #6
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    Re: no wireless connection - only on home network

    Quote Originally Posted by admiralspark View Post
    Yknow, I'm not sure this will help, but I've had to do it maybe twice a year (when I'm messing with my wireless cards):
    **WARNING** Proceed with Caution!!
    Boot into the BIOS menu, and press whichever keys you need to to "Reset to Factory Defaults". This will fix any lower-problems with your wireless, assuming it's the wireless card and not the router.

    /Caution

    The fact that your router connects fine with other computers makes me think it's your laptop. Would you kindly post the output of "iwconfig"? To see if the wireless card is operating at the right levels.
    Potential problems:
    --Permissions problems
    --misconfigured wlan0 connection
    --driver problems?
    mitchell@mitchell-laptop:~$ iwconfig
    lo no wireless extensions.

    eth0 no wireless extensions.

    wmaster0 no wireless extensions.

    wlan0 IEEE 802.11bgn ESSID:""
    Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
    Tx-Power=20 dBm
    Retry long limit:7 RTS thrff Fragment thrff
    Power Managementn
    Link Quality:0 Signal level:0 Noise level:0
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:0 Invalid misc:0 Missed beacon:0


    i am doing this at work right now where there is no wifi . . . if that makes a difference
    Last edited by angelsneverdie; March 18th, 2010 at 05:42 PM. Reason: explanation

  7. #7
    Join Date
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    Re: no wireless connection - only on home network

    Yeah, that would make a difference, part of what I hoped to see was whether iwconfig read it as connecting to an AP.

    You'd mentioned earlier that Windows won't connect now either, I'm thinking that might point to either the BIOS needing to be reset (to factory defaults, as mentioned above) or it might be a hardware problem. It shouldn't be an issue with hardware since the laptop is new, so I'm leaning towards BIOS or the driver being bad.

    Here's a test: Boot windows and reinstall the driver.
    Team Ignition Kernel Developer | Firestorm ROM Thunderbolt Manager
    linux-ideapad developer/maintainer for Arch Linux/Ubuntu Linux
    NT-Sparkkernel Developer for the Nook Tablet

  8. #8
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    Re: no wireless connection - only on home network

    Quote Originally Posted by admiralspark View Post
    Yeah, that would make a difference, part of what I hoped to see was whether iwconfig read it as connecting to an AP.

    You'd mentioned earlier that Windows won't connect now either, I'm thinking that might point to either the BIOS needing to be reset (to factory defaults, as mentioned above) or it might be a hardware problem. It shouldn't be an issue with hardware since the laptop is new, so I'm leaning towards BIOS or the driver being bad.

    Here's a test: Boot windows and reinstall the driver.
    i don't know if this will help anything, but i just went to the pub down the block for lunch and again my laptop connected to their wifi no problem (with both ubuntu and windows) here's what it gave me:
    mitchell@mitchell-laptop:~$ iwconfig
    lo no wireless extensions.

    eth0 no wireless extensions.

    wmaster0 no wireless extensions.

    wlan0 IEEE 802.11bgn ESSID:"BritishBulldog"
    Mode:Managed Frequency:2.412 GHz Access Point: 00:15:70:9F:26:A9
    Bit Rate=54 Mb/s Tx-Power=20 dBm
    Retry long limit:7 RTS thrff Fragment thrff
    Power Managementn
    Link Quality=70/70 Signal level=-36 dBm
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:0 Invalid misc:0 Missed beacon:0

  9. #9
    Join Date
    Sep 2007
    Location
    San Antonio, TX
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    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: no wireless connection - only on home network

    this may sound stupid but on the mac filter list, are you sure u didn't filter your mac out instead of safelisting it?

  10. #10
    Join Date
    Oct 2006
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    Re: no wireless connection - only on home network

    Quote Originally Posted by cerealtx View Post
    this may sound stupid but on the mac filter list, are you sure u didn't filter your mac out instead of safelisting it?
    that doesn't sound stupid because that is one of the first things I checked because it is something I would do. but it was deffintly set up right.

    do you think i should try just factory resetting the router?

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