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Thread: wireless suddenly not working while laptop running

  1. #1

    Default wireless suddenly not working while laptop running

    hi,
    I have Lenovo G550 and openSUSE 11.4. Everything's ok, wifi without problems, I could connect to anywhere I wanted to, but yesterday while laptop was running and was connected actually by wire to internet, after removing the wire I realized that I cannot connect to wifi (the laptop was hibernated during night) - even the light diode in the front of the laptop was not shining. I went to yast and realized that the wlan0 isn't enabled and there's new eth1 port. But the wlan by ifup I cannot start and the eth1 I cannot start as well.
    I didn't find there if someone has the same problem.
    What can I do? I'll copy there any output just say me please what you need.
    thanks

  2. #2

    Default Re: wireless suddenly not working while laptop running

    ifup eth1
    eth1 device: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
    eth1 warning: using NO encryption
    command 'iwconfig eth1 key off' returned
    Error for wireless request "Set Encode" (8B2A) :
    SET failed on device eth1 ; Invalid argument.
    command 'iwconfig eth1 essid any' returned
    Error for wireless request "Set ESSID" (8B1A) :
    SET failed on device eth1 ; Invalid argument.

  3. #3

    Default Re: wireless suddenly not working while laptop running

    ifconfig
    eth0 Link encap:Ethernet HWadr 70:5A:B6:4D:6F:A4
    inet adr:192.168.1.101 Všesměr:192.168.1.255 Maska:255.255.255.0
    inet6-adr: fe80::725a:b6ff:fe4d:6fa4/64 Rozsah:Linka
    AKTIVOVNO VŠESMĚROV_VYSLN BĚŽ MULTICAST MTU:1500 Metrika:1
    RX packets:4418 errors:0 dropped:0 overruns:0 frame:0
    TX packets:3905 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 dlka odchoz fronty:1000
    RX bytes:4856780 (4.6 Mb) TX bytes:614892 (600.4 Kb)
    Přerušen:17

    lo Link encap:Mstn smyčka
    inet adr:127.0.0.1 Maska:255.0.0.0
    inet6-adr: ::1/128 Rozsahočtač
    AKTIVOVNO SMYČKA BĚŽ MTU:16436 Metrika:1
    RX packets:154 errors:0 dropped:0 overruns:0 frame:0
    TX packets:154 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 dlka odchoz fronty:0
    RX bytes:12625 (12.3 Kb) TX bytes:12625 (12.3 Kb)

    # iwconfig
    lo no wireless extensions.

    eth0 no wireless extensions.

    eth1 IEEE 802.11bg ESSID:""
    Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
    Bit Rate:54 Mb/s Tx-Power:24 dBm
    Retry min limit:7 RTS thrff Fragment thrff
    Power Managementmode:All packets received
    Link Quality=5/5 Signal level=0 dBm Noise level=0 dBm
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:0 Invalid misc:0 Missed beacon:0

    vboxnet0 no wireless extensions.

  4. #4
    -G- NNTP User

    Default Re: wireless suddenly not working while laptop running

    lacadalet wrote:
    > I have Lenovo G550 and openSUSE 11.4. Everything's ok, wifi without
    > problems, I could connect to anywhere I wanted to, but yesterday while
    > laptop was running and was connected actually by wire to internet, after
    > removing the wire I realized that I cannot connect to wifi (the laptop
    > was hibernated during night)


    Similar thing here with a sony laptop. I seem to loose wifi randomly and I
    cannot enable it again although I can enable the networking checkbox, I
    can't do the same with the. wireless.
    I have to kill the Knetworkmanager (ctrl+Esc, then choose from list) and run
    it again from the kde menu.
    I have no idea what it might be, but it is very annoying.

    Cheers

    -G-


  5. #5
    Join Date
    Mar 2011
    Location
    Tigard, OR
    Posts
    5

    Default Re: wireless suddenly not working while laptop running

    I have a similar issue on my Sony Vaio (VGN-NW320F) with an Atheros AR9285 PCI-Express wifi interface. I don't kill and restart KNetworkManager though (though I'm sure that would "fix" it) but simply issue an "ifconfig wlan0 down" command and then issue an "ifconfig wlan0 up" command and it works again for a while. I haven't really dug very deep on this but I figured I'd chime in to say you guys aren't the only ones.

    My uname -a returns:
    Linux xxx.ersatz.net 2.6.37.1-1.2-desktop #1 SMP PREEMPT 2011-02-21 10:34:10 +0100 i686 i686 i386 GNU/Linux

    I ran a tail -f of /var/log/NetworkManager to see if anything showed up in there that might help me out but I haven't seen anything come by yet.

    It's interesting - I can trigger the issue by simply copying a large file over wireless from another host. If I figure anything out I'll post back here.

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