Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: Wireless suddenly disconnecting

  1. #1
    Join Date
    Oct 2010
    Beans
    2

    Exclamation Wireless suddenly disconnecting

    The problem is the wireless connection suddenly disappearing after it has been used for a while - it could be after an hour of after 10 minutes of usage. I have experienced this on both 10.04 and on the current 10.10 installation of Ubuntu Desktop on my Dell Vostro 3700 laptop.

    I have a netbook Asus 901 with Ubuntu 9.04 which is stable as a rock. No issues of this kind. On another laptop I have 10.10 remix, which also works very well.

    The wireless hardware on the Dell Vostro 3700 is the following:

    12:00.0 Network controller [0280]: Broadcom Corporation BCM43224 802.11a/b/g/n [14e4:4353] (rev 01)
    I'm using an additional driver for it: "Broadcom STA Wireless Driver"

    uname -a
    Linux allan-laptop 2.6.35-22-generic #34-Ubuntu SMP Sun Oct 10 09:26:05 UTC 2010 x86_64 GNU/Linux
    The system log is attached as a txt file. Here is a snip of when it fails - but why is the good question:

    Oct 17 10:41:52 allan-laptop wpa_supplicant[1050]: CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys
    Oct 17 10:41:52 allan-laptop NetworkManager[1010]: <info> (eth1): supplicant connection state: completed -> disconnected
    Oct 17 10:41:52 allan-laptop NetworkManager[1010]: <info> (eth1): supplicant connection state: disconnected -> scanning
    Oct 17 10:42:01 allan-laptop wpa_supplicant[1050]: CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys
    Oct 17 10:42:01 allan-laptop NetworkManager[1010]: <info> (eth1): supplicant connection state: scanning -> disconnected
    Oct 17 10:42:04 allan-laptop NetworkManager[1010]: <info> (eth1): supplicant connection state: disconnected -> scanning
    Oct 17 10:42:08 allan-laptop NetworkManager[1010]: <info> (eth1): device state change: 8 -> 3 (reason 11)
    Oct 17 10:42:08 allan-laptop NetworkManager[1010]: <info> (eth1): deactivating device (reason: 11).
    Oct 17 10:42:08 allan-laptop NetworkManager[1010]: <info> (eth1): canceled DHCP transaction, DHCP client pid 2041
    Oct 17 10:42:08 allan-laptop avahi-daemon[1009]: Withdrawing address record for 192.168.1.7 on eth1.
    Oct 17 10:42:08 allan-laptop avahi-daemon[1009]: Leaving mDNS multicast group on interface eth1.IPv4 with address 192.168.1.7.
    Oct 17 10:42:08 allan-laptop avahi-daemon[1009]: Interface eth1.IPv4 no longer relevant for mDNS.
    When searching for the wireless network on startup sometimes it doesn't show a start, but all the other networks in the neighborhood does. I have to connect manually to a "hidden wireless network" to make it work.

    Please Help and let me know if you need more information to crack this nut.

    Thanks.
    Last edited by allandk78; October 17th, 2010 at 10:36 AM.

  2. #2
    Join Date
    Apr 2006
    Beans
    13
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: Wireless suddenly disconnecting

    I just upgraded 4 days ago from 10.04 x64 to 10.10 x64 and my wifi is giving me huge grief.
    My wifi was rock solid, NEVER gave me issues, now i experience constant drop outs, and sometimes it wont even work. Only a reboot will fix it.


    Code:
    :~$ uname -a
    Linux allenkey 2.6.35-22-generic #34-Ubuntu SMP Sun Oct 10 09:26:05 UTC 2010 x86_64 GNU/Linux
    Code:
    :~$ lspci
    00:00.0 Host bridge: nVidia Corporation MCP79 Host Bridge (rev b1)
    00:00.1 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1)
    00:03.0 ISA bridge: nVidia Corporation MCP79 LPC Bridge (rev b2)
    00:03.1 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1)
    00:03.2 SMBus: nVidia Corporation MCP79 SMBus (rev b1)
    00:03.3 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1)
    00:03.5 Co-processor: nVidia Corporation MCP79 Co-processor (rev b1)
    00:04.0 USB Controller: nVidia Corporation MCP79 OHCI USB 1.1 Controller (rev b1)
    00:04.1 USB Controller: nVidia Corporation MCP79 EHCI USB 2.0 Controller (rev b1)
    00:08.0 Audio device: nVidia Corporation MCP79 High Definition Audio (rev b1)
    00:09.0 PCI bridge: nVidia Corporation MCP79 PCI Bridge (rev b1)
    00:0b.0 SATA controller: nVidia Corporation MCP79 AHCI Controller (rev b1)
    00:0c.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1)
    00:15.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1)
    00:16.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1)
    02:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9600M GT] (rev a1)
    03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
    04:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
    Code:
    :~$ sudo dmesg | grep ath9k
    [sudo] password for : 
    [   12.064690] ath9k 0000:04:00.0: PCI INT A -> Link[LN4A] -> GSI 18 (level, low) -> IRQ 18
    [   12.064698] ath9k 0000:04:00.0: setting latency timer to 64
    [   12.784862] phy0: Selected rate control algorithm 'ath9k_rate_control'
    [   12.785412] Registered led device: ath9k-phy0::radio
    [   12.785431] Registered led device: ath9k-phy0::assoc
    [   12.785444] Registered led device: ath9k-phy0::tx
    [   12.785459] Registered led device: ath9k-phy0::rx
    [ 9151.982390] ath9k 0000:04:00.0: PCI INT A disabled
    [ 9153.920435] ath9k 0000:04:00.0: PCI INT A -> Link[LN4A] -> GSI 18 (level, low) -> IRQ 18
    Im fully aware that the Atheros (ath9k) can cause issues. The fact it worked fine in lucid, why is it so much of an issue in Maverick ??

  3. #3
    Join Date
    Apr 2006
    Beans
    13
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: Wireless suddenly disconnecting

    one thing ill also mention, my onboard gbit eth0 always gave me grief with 9.10 karmic. It NEVER went above 10/100, and only transfered at 10meg/sec to my file server. Karmic instantly fixed this and i was able to get 38mb/s constant (limit of this laptop hdd).

    Now 10.10 maverick is back to the old 9.10 karmic problems. Its not detecting at gbit speeds, only 10/100.

    If i could downgrade, i would. I dont want to do a full re-install just yet, but im VERY tempted to do it just for this networking issues.

  4. #4
    Join Date
    Oct 2010
    Beans
    12

    Re: Wireless suddenly disconnecting

    I am having a similar problem on 10.10 with a Broadcom based wireless card. Worked OK on 9.x.

    Problem appears to be at least partially related to load. I can create disconnects on demand with a large file download, video stream or similar. I can generally recover by deactivating the wireless network from the GUI and re-activating.

    I'll see if I can document the problem in a later post. Not a hard core unix guy; helpful if someone can list the commands they'd like me to run.

    Thanks!

    Jeff

  5. #5
    Join Date
    Apr 2006
    Beans
    13
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: Wireless suddenly disconnecting

    OK.. ill paste my post here to another thread which has a similar thing going on.

    http://linuxwireless.org/en/users/Download

    I installed those drivers, AND!! changed my wifi channel from 11 to 1 and power cycled my wifi router (both, i have 2, one which handles my local network and DSL2 duties, and another one on my roof, mikrotek rb133, which connects to a local wifi community, and bridged between the 2 networks), and all came good.

    Im not too sure which was the issue here. My network (cable eth0) also works at true gbit speed now when plugged in. Not sure why but its something to note.

    So basically everything for me is working perfectly again. I hope others get some success soon !!

  6. #6
    Join Date
    Feb 2006
    Location
    Hatboro, PA
    Beans
    2,551
    Distro
    Ubuntu Development Release

    Re: Wireless suddenly disconnecting

    Known bug (https://bugs.launchpad.net/linux/+bug/518818), that is supposedly fixed, but still is affecting me.
    Asus EeePC 1005HA: ElementaryOS Luna | Asus X501A: Windows 8.1 & Ubuntu GNOME 14.10 Utopic Unicorn | Apple iMac G4: Ubuntu 12.04 Precise Pangolin | LG Optimus F3: Stock v7 | Nexus 10 Cyanogenmod 11

  7. #7
    Join Date
    Jul 2007
    Beans
    12

    Re: Wireless suddenly disconnecting

    Getting weird disconnects on HP Mini 311 after clean install of 10.10. netbook remix. It seemed to work well for a little while but now it's disconnecting seconds after connecting, and gets stuck in some kind of loop when reconnecting. Connection is rock solid in XP or 7. Pretty frustrating issue on a netbook especially since I don't have an extra ethernet cable to use to trouble shoot on the machine itself, I have to unplug my desktop to even get syslogs like the following off it.

    Code:
    Nov  8 15:39:18 311 NetworkManager[987]: <info> Activation (wlan0) starting connection 'Compu-Global-Hyper-Mega-Net'
    Nov  8 15:39:18 311 NetworkManager[987]: <info> (wlan0): device state change: 3 -> 4 (reason 0)
    Nov  8 15:39:18 311 NetworkManager[987]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
    Nov  8 15:39:18 311 NetworkManager[987]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
    Nov  8 15:39:18 311 NetworkManager[987]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
    Nov  8 15:39:18 311 NetworkManager[987]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
    Nov  8 15:39:18 311 NetworkManager[987]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
    Nov  8 15:39:18 311 NetworkManager[987]: <info> (wlan0): device state change: 4 -> 5 (reason 0)
    Nov  8 15:39:18 311 NetworkManager[987]: <info> Activation (wlan0/wireless): connection 'Compu-Global-Hyper-Mega-Net' has security, and secrets exist.  No new secrets needed.
    Nov  8 15:39:18 311 NetworkManager[987]: <info> Config: added 'ssid' value 'Compu-Global-Hyper-Mega-Net'
    Nov  8 15:39:18 311 NetworkManager[987]: <info> Config: added 'scan_ssid' value '1'
    Nov  8 15:39:18 311 NetworkManager[987]: <info> Config: added 'key_mgmt' value 'WPA-PSK'
    Nov  8 15:39:18 311 NetworkManager[987]: <info> Config: added 'psk' value '<omitted>'
    Nov  8 15:39:18 311 NetworkManager[987]: nm_setting_802_1x_get_pkcs11_engine_path: assertion `NM_IS_SETTING_802_1X (setting)' failed
    Nov  8 15:39:18 311 NetworkManager[987]: nm_setting_802_1x_get_pkcs11_module_path: assertion `NM_IS_SETTING_802_1X (setting)' failed
    Nov  8 15:39:18 311 NetworkManager[987]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
    Nov  8 15:39:18 311 NetworkManager[987]: <info> Config: set interface ap_scan to 1
    Nov  8 15:39:18 311 NetworkManager[987]: <info> (wlan0): supplicant connection state:  disconnected -> scanning
    Nov  8 15:40:19 311 NetworkManager[987]: <warn> Activation (wlan0/wireless): association took too long.
    Nov  8 15:40:19 311 NetworkManager[987]: <info> (wlan0): device state change: 5 -> 6 (reason 0)
    Nov  8 15:40:19 311 NetworkManager[987]: <warn> Activation (wlan0/wireless): asking for new secrets
    Nov  8 15:40:19 311 NetworkManager[987]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
    Nov  8 15:40:19 311 NetworkManager[987]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
    Nov  8 15:40:19 311 NetworkManager[987]: <info> (wlan0): device state change: 6 -> 4 (reason 0)
    Nov  8 15:40:19 311 NetworkManager[987]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
    Nov  8 15:40:19 311 NetworkManager[987]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
    Nov  8 15:40:19 311 NetworkManager[987]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
    Nov  8 15:40:19 311 NetworkManager[987]: <info> (wlan0): device state change: 4 -> 5 (reason 0)
    Nov  8 15:40:19 311 NetworkManager[987]: <info> Activation (wlan0/wireless): connection 'Compu-Global-Hyper-Mega-Net' has security, and secrets exist.  No new secrets needed.
    Nov  8 15:40:19 311 NetworkManager[987]: <info> Config: added 'ssid' value 'Compu-Global-Hyper-Mega-Net'
    Nov  8 15:40:19 311 NetworkManager[987]: <info> Config: added 'scan_ssid' value '1'
    Nov  8 15:40:19 311 NetworkManager[987]: <info> Config: added 'key_mgmt' value 'WPA-PSK'
    Nov  8 15:40:19 311 NetworkManager[987]: <info> Config: added 'psk' value '<omitted>'
    Nov  8 15:40:19 311 NetworkManager[987]: nm_setting_802_1x_get_pkcs11_engine_path: assertion `NM_IS_SETTING_802_1X (setting)' failed
    Nov  8 15:40:19 311 NetworkManager[987]: nm_setting_802_1x_get_pkcs11_module_path: assertion `NM_IS_SETTING_802_1X (setting)' failed
    Nov  8 15:40:19 311 NetworkManager[987]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
    Nov  8 15:40:19 311 NetworkManager[987]: <info> (wlan0): supplicant connection state:  scanning -> disconnected
    Nov  8 15:40:19 311 NetworkManager[987]: <info> Config: set interface ap_scan to 1
    Nov  8 15:40:21 311 NetworkManager[987]: <info> (wlan0): supplicant connection state:  disconnected -> scanning
    Nov  8 15:40:34 311 NetworkManager[987]: <warn> (wlan0): link timed out.

  8. #8
    Join Date
    Jul 2007
    Beans
    12

    Re: Wireless suddenly disconnecting

    friend suggested I install "wicd" and that seems to have somehow solved the problem, though my understanding is installing that with aptitude should have disabled the seemingly broken default network manager package, which it did not.

    edit: removed network-manager-gnome and network-manager manually with aptitude, rebooted, wicd is still connecting to wireless fine. What it is that makes wicd "just work" when the default network manager fails in an extremely annoying way I have no idea, but if someone would like some logs or something to help resolve this bug which seems to have been around for a while, let me know what to post.
    Last edited by indelible; November 9th, 2010 at 01:59 AM.

  9. #9
    Join Date
    Nov 2010
    Location
    London
    Beans
    6
    Distro
    Ubuntu

    Re: Wireless suddenly disconnecting

    I have the same problem, my wireless keeps disconnecting all the time after having installed ubuntu 10.10. It would work for a while and then I would need to do a restart to restore the connection. I have tried installing wicd as suggested in the previous entry but it didn't work. There are several fixes suggested but nobody seems to be sure about what is casing this. Does anybody have more information about this issue?

  10. #10
    Join Date
    Aug 2006
    Location
    Siesta Key, Fl
    Beans
    126
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Wireless suddenly disconnecting

    Same here, soooo ~ I was running ubuntustudio; I reinstalled Ubuntu 32 bit, then installed the metapackages for studio, now it works. And has been for a day now without issue.

Page 1 of 2 12 LastLast

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •