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View Full Version : [ubuntu] Wireless Network Troubleshooting



gloken
January 18th, 2009, 10:23 PM
Hi, I had wireless working on my laptop, and it seems to have stopped working.
I've been arguing with it and am somewhat concerned that I've made the situation even worse.

How does one begin troubleshooting wireless problems?

Linksys, WPC11 v4

****@****-laptop:~$ lshw
WARNING: you should run this program as super-user.
****-laptop
description: Computer
width: 32 bits
*-core
description: Motherboard
physical id: 0
*-memory
description: System memory
physical id: 1
size: 503MiB
*-cpu
product: Intel(R) Pentium(R) M processor 1.60GHz
vendor: Intel Corp.
physical id: 2
bus info: cpu@0
version: 6.13.6
size: 1200MHz
capacity: 1200MHz
width: 32 bits
capabilities: fpu fpu_exception wp vme de pse tsc msr mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe up bts est tm2 cpufreq
*-pci
description: Host bridge
product: 82852/82855 GM/GME/PM/GMV Processor to I/O Controller
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 02
width: 32 bits
clock: 33MHz
configuration: driver=agpgart-intel module=intel_agp
*-system:0 UNCLAIMED
description: System peripheral
product: 82852/82855 GM/GME/PM/GMV Processor to I/O Controller
vendor: Intel Corporation
physical id: 0.1
bus info: pci@0000:00:00.1
version: 02
width: 32 bits
clock: 33MHz
capabilities: bus_master
configuration: latency=0
*-system:1 UNCLAIMED
description: System peripheral
product: 82852/82855 GM/GME/PM/GMV Processor to I/O Controller
vendor: Intel Corporation
physical id: 0.3
bus info: pci@0000:00:00.3
version: 02
width: 32 bits
clock: 33MHz
capabilities: bus_master
configuration: latency=0
*-display:0 UNCLAIMED
description: VGA compatible controller
product: 82852/855GM Integrated Graphics Device
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: latency=0
*-display:1 UNCLAIMED
description: Display controller
product: 82852/855GM Integrated Graphics Device
vendor: Intel Corporation
physical id: 2.1
bus info: pci@0000:00:02.1
version: 02
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: latency=0
*-usb:0
description: USB Controller
product: 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1
vendor: Intel Corporation
physical id: 1d
bus info: pci@0000:00:1d.0
version: 03
width: 32 bits
clock: 33MHz
capabilities: bus_master
configuration: driver=uhci_hcd latency=0 module=uhci_hcd
*-usb:1
description: USB Controller
product: 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2
vendor: Intel Corporation
physical id: 1d.1
bus info: pci@0000:00:1d.1
version: 03
width: 32 bits
clock: 33MHz
capabilities: bus_master
configuration: driver=uhci_hcd latency=0 module=uhci_hcd
*-usb:2
description: USB Controller
product: 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3
vendor: Intel Corporation
physical id: 1d.2
bus info: pci@0000:00:1d.2
version: 03
width: 32 bits
clock: 33MHz
capabilities: bus_master
configuration: driver=uhci_hcd latency=0 module=uhci_hcd
*-usb:3
description: USB Controller
product: 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller
vendor: Intel Corporation
physical id: 1d.7
bus info: pci@0000:00:1d.7
version: 03
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=ehci_hcd latency=0 module=ehci_hcd
*-pci
description: PCI bridge
product: 82801 Mobile PCI Bridge
vendor: Intel Corporation
physical id: 1e
bus info: pci@0000:00:1e.0
version: 83
width: 32 bits
clock: 33MHz
capabilities: pci bus_master
*-network:0
description: Wireless interface
product: PRO/Wireless 2200BG [Calexico2] Network Connection
vendor: Intel Corporation
physical id: 4
bus info: pci@0000:01:04.0
logical name: eth1
version: 05
serial: 00:0e:35:96:98:2f
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ipw2200 driverversion=1.2.2kmprq firmware=ABG:9.0.2.6 (Mar 22 2005) latency=64 maxlatency=24 mingnt=3 module=ipw2200 multicast=yes wireless=radio off
*-pcmcia:0
description: CardBus bridge
product: OZ711M1/MC1 4-in-1 MemoryCardBus Controller
vendor: O2 Micro, Inc.
physical id: 5
bus info: pci@0000:01:05.0
version: 20
width: 32 bits
clock: 33MHz
capabilities: pcmcia bus_master cap_list
configuration: driver=yenta_cardbus latency=176 maxlatency=5 module=yenta_socket
*-pcmcia:1
description: CardBus bridge
product: OZ711M1/MC1 4-in-1 MemoryCardBus Controller
vendor: O2 Micro, Inc.
physical id: 5.1
bus info: pci@0000:01:05.1
version: 20
width: 32 bits
clock: 33MHz
capabilities: pcmcia bus_master cap_list
configuration: driver=yenta_cardbus latency=176 maxlatency=5 mingnt=128 module=yenta_socket
*-system UNCLAIMED
description: System peripheral
product: OZ711Mx 4-in-1 MemoryCardBus Accelerator
vendor: O2 Micro, Inc.
physical id: 5.2
bus info: pci@0000:01:05.2
version: 00
width: 32 bits
clock: 33MHz
capabilities: cap_list
configuration: latency=64
*-network:1
description: Ethernet interface
product: RTL-8139/8139C/8139C+
vendor: Realtek Semiconductor Co., Ltd.
physical id: 6
bus info: pci@0000:01:06.0
logical name: eth0
version: 10
serial: 00:40:45:21:1d:36
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical
configuration: broadcast=yes driver=8139too driverversion=0.9.28 ip=192.168.1.100 latency=64 maxlatency=64 mingnt=32 module=8139too multicast=yes
*-isa
description: ISA bridge
product: 82801DBM (ICH4-M) LPC Interface Bridge
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 03
width: 32 bits
clock: 33MHz
capabilities: isa bus_master
configuration: latency=0
*-ide
description: IDE interface
product: 82801DBM (ICH4-M) IDE Controller
vendor: Intel Corporation
physical id: 1f.1
bus info: pci@0000:00:1f.1
version: 03
width: 32 bits
clock: 33MHz
capabilities: ide bus_master
configuration: driver=ata_piix latency=0 module=ata_piix
*-multimedia
description: Multimedia audio controller
product: 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller
vendor: Intel Corporation
physical id: 1f.5
bus info: pci@0000:00:1f.5
version: 03
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=Intel ICH latency=0 module=snd_intel8x0
*-communication UNCLAIMED
description: Modem
product: 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller
vendor: Intel Corporation
physical id: 1f.6
bus info: pci@0000:00:1f.6
version: 03
width: 32 bits
clock: 33MHz
capabilities: cap_list
configuration: latency=0
*-network
description: Wireless interface
product: RTL8180L 802.11b MAC
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlan0
version: 20
serial: 00:0f:66:4b:96:3e
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ndiswrapper+net8180 driverversion=1.53+Realtek,10/07/2004,5.173.10 latency=64 maxlatency=64 mingnt=32 module=ndiswrapper multicast=yes wireless=IEEE 802.11b
*-network DISABLED
description: Ethernet interface
physical id: 1
logical name: pan0
serial: 8a:12:6c:94:54:56
capabilities: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A multicast=yes


****@****-laptop:~$ lspci
00:00.0 Host bridge: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
00:00.1 System peripheral: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
00:00.3 System peripheral: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
00:02.0 VGA compatible controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)
00:02.1 Display controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 83)
00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC Interface Bridge (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE Controller (rev 03)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
00:1f.6 Modem: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller (rev 03)
01:04.0 Network controller: Intel Corporation PRO/Wireless 2200BG [Calexico2] Network Connection (rev 05)
01:05.0 CardBus bridge: O2 Micro, Inc. OZ711M1/MC1 4-in-1 MemoryCardBus Controller (rev 20)
01:05.1 CardBus bridge: O2 Micro, Inc. OZ711M1/MC1 4-in-1 MemoryCardBus Controller (rev 20)
01:05.2 System peripheral: O2 Micro, Inc. OZ711Mx 4-in-1 MemoryCardBus Accelerator
01:06.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8180L 802.11b MAC (rev 20)

blothian
January 18th, 2009, 10:28 PM
try a system recovery or find a driver.
hope this helps
ben

gloken
January 24th, 2009, 11:47 PM
try a system recovery or find a driver.
hope this helps
ben

I did a clean install, installed wifi and ndiswrapper to install the windows drivers and the card still does not work.

Any help troubleshooting the card would be much appreciated.

Quick update: sudo iwlist scan does show me several wireless networks in the area, so I seem to be connecting to the card. The GUI network manager isn't finding any wireless though and I can't connect to the internet.

Loosewheel
January 25th, 2009, 02:01 AM
I did a clean install, installed wifi and ndiswrapper to install the windows drivers and the card still does not work.

Any help troubleshooting the card would be much appreciated.

Quick update: sudo iwlist scan does show me several wireless networks in the area, so I seem to be connecting to the card. The GUI network manager isn't finding any wireless though and I can't connect to the internet.

Hi gloken, here's a link to Ubuntu documentation, Wireless troubleshooting:
https://help.ubuntu.com/8.10/internet/C/troubleshooting.html

You have to configure the connection with NetworkManager the first time, or it will not set it up. Maybe right click the 'nm-applett', (by the clock), and select 'Edit connections'.

kevdog
January 25th, 2009, 02:43 AM
I wrote a thread about this type of activity once (See signature!)

Josh_Lapointe
January 25th, 2009, 04:06 AM
Hey,

I had the same issue with mine, all i did was:
Get the latest updates for all the new modules, and then from there went into System and go for Hardware Drivers, and just enable the drivers that are required for your wireless. (I had a Broadcom 4328 that i thought I'd never find drivers for.) Try that, if that doesn't work. Repost. Also, try Ndiswrapper.

gloken
January 26th, 2009, 06:55 AM
Hi again, thanks for all the help. I'll just sum up my results in case someone has a similar problem.


I stumbled upon my answer in here:


HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc. (http://ubuntuforums.org/showthread.php?t=318539 sudo gedit /etc/network/interfaces)

I disabled the gnome-network-manager and went to the command line. I had to edit /etc/network/interfaces and add:

auto wlan0
iface wlan0 inet dhcp

It looks pretty obvious there, but it seems to work now. Thanks for all the tips and links, they were enormously helpful.