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Old 02-06-2009, 05:30 PM   #1
bobbygrimlock
LQ Newbie
 
Registered: Feb 2009
Posts: 2

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Unhappy Ubuntu wireless suddenly stopped working for no reason


I've been using Ubuntu version 6.06 and my wireless internet was working perfectly fine and then suddenly it wasn't. I tried restarting the router and my roommates' wireless still works fine with windows. The wireless card appears to be connected as the lights are still flashing but getting no internet connection. I just keep getting the same message of "No working leases in persistent database - sleeping." Below are the results of iwconfig, iwlist ath0scan, lshw, dhclient eth0, and the contents of my interfaces file. I know that I have the correct name for the server and the password is correct and case sensitive.


I've spent hours trying to fix this can anyone help PLEASE!???


rob@rob-laptop:~$ iwconfig
lo no wireless extensions.

irda0 no wireless extensions.

ath0 IEEE 802.11g ESSID:"cylon god"
Mode:Managed Frequency:2.417 GHz Access Point: 00:11:24:00:EB:61
Bit Rate:1 Mb/s Tx-Power:18 dBm Sensitivity=0/3
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality=0/94 Signal level=-95 dBm Noise level=-95 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

sit0 no wireless extensions.

rob@rob-laptop:~$ sudo iwlist ath0 scan
Password:
ath0 Scan completed :
Cell 01 - Address: 00:11:24:00:EB:61
ESSID:"cylon god"
Mode:Master
Frequency:2.412 GHz (Channel 1)
Quality=31/94 Signal level=-64 dBm Noise level=-95 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 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
Extra:bcn_int=100
Extra:wpa_ie=dd180050f20101000050f20201000050f20201000050f20 20000

rob@rob-laptop:~$ sudo lshw
rob-laptop
description: Notebook
product: 26457EU
vendor: IBM
version: Not Available
serial: 78HWNV2
width: 32 bits
capabilities: smbios-2.2 dmi-2.2
configuration: boot=normal chassis=notebook uuid=C5C2CA81-43DA-11CB-B669-93E 70C6F745D
*-core
description: Motherboard
product: 26457EU
vendor: IBM
physical id: 0
version: Not Available
serial: J1CXV9974FL
*-firmware
description: BIOS
vendor: IBM
physical id: 0
version: ITET48WW (11/30/1999)
size: 64KB
capacity: 448KB
capabilities: isa pci pcmcia pnp apm upgrade shadowing cdboot bootsele ct pcmciaboot edd int13floppy720 int13floppy2880 int5printscreen int9keyboard in t14serial int17printer int10video acpi agp ls120boot
*-cpu
description: CPU
product: Pentium III (Coppermine)
vendor: Intel Corp.
physical id: 5
bus info: cpu@0
version: 6.8.1
slot: Intel Processor Module
size: 450MHz
capacity: 450MHz
width: 32 bits
clock: 100MHz
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr sse
*-cache:0
description: L1 cache
physical id: a
slot: Internal L1 Cache
size: 32KB
capacity: 32KB
capabilities: synchronous internal write-back unified
*-cache:1
description: L2 cache
physical id: b
slot: Internal L2 Cache
size: 256KB
capacity: 256KB
capabilities: pipeline-burst external write-back unified
*-memory
description: System Memory
physical id: 27
slot: System board or motherboard
size: 192MB
capacity: 512MB
*-bank:0
description: DIMM Synchronous
physical id: 0
slot: DIMM 0
size: 64MB
width: 64 bits
*-bank:1
description: DIMM [empty]
physical id: 1
slot: DIMM 1
*-bank:2
description: DIMM Synchronous
physical id: 2
slot: DIMM 2
size: 128MB
width: 64 bits
*-pci
description: Host bridge
product: 440BX/ZX/DX - 82443BX/ZX/DX Host bridge
vendor: Intel Corporation
physical id: 40000000
bus info: pci@00:00.0
version: 03
width: 32 bits
clock: 33MHz
resources: iomemory:40000000-43ffffff
*-pci
description: PCI bridge
product: 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge
vendor: Intel Corporation
physical id: 1
bus info: pci@00:01.0
version: 03
width: 32 bits
clock: 66MHz
capabilities: pci normal_decode bus_master
*-display
description: VGA compatible controller
product: NM2360 [MagicMedia 256ZX]
vendor: Neomagic Corporation
physical id: 0
bus info: pci@01:00.0
version: 00
size: 32MB
width: 32 bits
clock: 33MHz
capabilities: vga bus_master cap_list
resources: iomemory:e0000000-e1ffffff iomemory:70000000-703fffff iomemory:70400000-704fffff irq:11
*-pcmcia:0
description: CardBus bridge
product: PCI1450
vendor: Texas Instruments
physical id: 2
bus info: pci@00:02.0
version: 03
width: 32 bits
clock: 33MHz
capabilities: pcmcia bus_master cap_list
configuration: driver=yenta_cardbus
resources: iomemory:50103000-50103fff irq:11
*-pcmcia:1
description: CardBus bridge
product: PCI1450
vendor: Texas Instruments
physical id: 2.1
bus info: pci@00:02.1
version: 03
width: 32 bits
clock: 33MHz
capabilities: pcmcia bus_master cap_list
configuration: driver=yenta_cardbus
resources: iomemory:50102000-50102fff irq:11
*-network
description: AR5001-0000-0000
product: Wireless LAN Reference Card
vendor: Atheros Communications, Inc.
physical id: 0
version: 00
slot: Socket 1
resources: irq:11
*-communication UNCLAIMED
description: Communication controller
product: WinModem 56k
vendor: Agere Systems
physical id: 3
bus info: pci@00:03.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list
resources: iomemory:50101000-501010ff ioport:4500-4507 ioport:4400- 44ff irq:11
*-multimedia
description: Multimedia audio controller
product: CS 4614/22/24 [CrystalClear SoundFusion Audio Accelerator]
vendor: Cirrus Logic
physical id: 6
bus info: pci@00:06.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=Sound Fusion CS46xx
resources: iomemory:50100000-50100fff iomemory:50000000-500fffff ir q:11
*-bridge:0 UNCLAIMED
description: Bridge
product: 82371AB/EB/MB PIIX4 ISA
vendor: Intel Corporation
physical id: 7
bus info: pci@00:07.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: bridge bus_master
*-ide
description: IDE interface
product: 82371AB/EB/MB PIIX4 IDE
vendor: Intel Corporation
physical id: 7.1
bus info: pci@00:07.1
version: 01
width: 32 bits
clock: 33MHz
capabilities: ide bus_master
configuration: driver=PIIX_IDE
resources: ioport:fcf0-fcff
*-ide:0
description: IDE Channel 0
physical id: 0
bus info: ide@0
logical name: ide0
clock: 33MHz
*-disk
description: ATA Disk
product: TOSHIBA MK2018GAS
vendor: Toshiba
physical id: 0
bus info: ide@0.0
logical name: /dev/hda
version: Q2.02 A
serial: 62NG4027T
size: 18GB
capacity: 18GB
capabilities: ata dma lba iordy smart security pm apm partiti oned partitioned:dos
configuration: apm=off mode=udma2 smart=on
*-volume:0
description: Linux filesystem partition
physical id: 1
bus info: ide@0.0,1
logical name: /dev/hda1
capacity: 17GB
capabilities: primary bootable
*-volume:1
description: Extended partition
physical id: 2
bus info: ide@0.0,2
logical name: /dev/hda2
capacity: 729MB
capabilities: extended partitioned partitioned:extended
*-ide:1
description: IDE Channel 1
physical id: 1
bus info: ide@1
logical name: ide1
clock: 33MHz
*-cdrom
description: DVD reader
product: TOSHIBA DVD-ROM SD-C2302
vendor: Toshiba
physical id: 0
bus info: ide@1.0
logical name: /dev/hdc
version: 1617
serial: 2000007291
capabilities: packet atapi cdrom removable nonmagnetic dma lb a iordy audio dvd
*-disc
physical id: 0
logical name: /dev/hdc
*-usb
description: USB Controller
product: 82371AB/EB/MB PIIX4 USB
vendor: Intel Corporation
physical id: 7.2
bus info: pci@00:07.2
version: 01
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd
resources: ioport:4000-401f irq:11
*-usbhost
product: UHCI Host Controller
vendor: Linux 2.6.15-52-386 uhci_hcd
physical id: 1
bus info: usb@1
logical name: usb1
version: 2.06
capabilities: usb-1.10
configuration: driver=hub maxpower=0mA slots=2 speed=12.0MB/s
*-usb
description: Mass storage device
product: U3 Cruzer Micro
vendor: SanDisk
physical id: 1
bus info: usb@1:1
logical name: scsi1
version: 2.00
serial: 0876520EF180CC5B
capabilities: usb-2.00 scsi emulated scsi-host
configuration: driver=usb-storage maxpower=100mA speed=12.0MB /s
*-disk
description: SCSI Disk
product: U3 Cruzer Micro
vendor: SanDisk
physical id: 0.0.0
bus info: scsi@1:0.0.0
logical name: /dev/sda
version: 8.01
serial: u
size: 1908MB
capabilities: removable
*-disc
physical id: 0
logical name: /dev/sda
size: 1908MB
capabilities: partitioned partitioned:dos
*-volume
description: FAT16 partition
physical id: 1
logical name: /dev/sda1
capacity: 1907MB
capabilities: primary
*-cdrom
description: SCSI CD-ROM
product: U3 Cruzer Micro
vendor: SanDisk
physical id: 0.0.1
bus info: scsi@1:0.0.1
logical name: /dev/cdrom
logical name: /dev/scd0
logical name: /dev/sr0
version: 8.01
serial: uSanDisk U3 Cruzer Micro 8.01
capabilities: removable audio
*-disc
physical id: 0
logical name: /dev/cdrom
*-bridge:1 UNCLAIMED
description: Bridge
product: 82371AB/EB/MB PIIX4 ACPI
vendor: Intel Corporation
physical id: 7.3
bus info: pci@00:07.3
version: 03
width: 32 bits
clock: 33MHz
capabilities: bridge
resources: irq:9
*-network
description: Wireless interface
product: Atheros Communications, Inc.
vendor: Atheros Communications, Inc.
physical id: 1
bus info: pci@06:00.0
logical name: ath0
version: 01
serial: 00:13:f7:59:6b:90
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath_pci driverversion=0.9.6.0 (EXP ERIMENTAL) multicast=yes wireless=IEEE 802.11g
resources: iomemory:16000000-1600ffff irq:11
*-battery
description: Lithium Ion Battery
product: Not Available
vendor: IBM
physical id: 1
version: Not Available
serial: Not Available
slot: in the back, on the center
capacity: 32400mWh
configuration: voltage=10.8V
rob@rob-laptop:~$ sudo dhclient eth0
Internet Systems Consortium DHCP Client V3.0.3
Copyright 2004-2005 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP

SIOCSIFADDR: No such device
eth0: ERROR while getting interface flags: No such device
eth0: ERROR while getting interface flags: No such device
Bind socket to interface: No such device
rob@rob-laptop:~$ sudo ifdown ath0
Internet Systems Consortium DHCP Client V3.0.3
Copyright 2004-2005 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP

Listening on LPF/ath0/00:13:f7:59:6b:90
Sending on LPF/ath0/00:13:f7:59:6b:90
Sending on Socket/fallback
DHCPRELEASE on ath0 to 192.168.1.1 port 67
send_packet: Network is unreachable
send_packet: please consult README file regarding broadcast address.
rob@rob-laptop:~$ sudo ifup ath0
Internet Systems Consortium DHCP Client V3.0.3
Copyright 2004-2005 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP

Listening on LPF/ath0/00:13:f7:59:6b:90
Sending on LPF/ath0/00:13:f7:59:6b:90
Sending on Socket/fallback
DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 9
DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 14
DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 19
DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 11
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
rob@rob-laptop:~$cat /etc/network/interfaces


auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

auto eth1
iface eth1 inet dhcp

auto eth2
iface eth2 inet dhcp

auto wlan0
iface wlan0 inet dhcp

auto ath0
iface ath0 inet dhcp
wireless-essid cylon god
wireless-key s:goodgoodgood
 
Old 02-08-2009, 12:52 PM   #2
raskin
Senior Member
 
Registered: Sep 2005
Location: Russia
Distribution: NixOS (http://nixos.org)
Posts: 1,893

Rep: Reputation: 68
Please post output of "dhclient ath0"
 
  


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