Atheros AR2413 - unstable wifi connection

[jw1949]

Installed 9.10 on a Tosh A100 Satellite laptop with a dual boot to WinXP and, so far I am very pleased to have almost everything that I was running on XP working nicely on Ubuntu - notably OpenOffice (for Word + Excel), Picasa, GnuCash (for Quicken), Amarok and VLC. I have also installed Chrome - I prefer it to Firefox 'cos it seems much faster, however, at the moment I am having some problems keeping the wifi connection stable - I do not think it is Chrome as I have similar issues with Firefox.

When I click on a link the timer rolls and rolls with no result. The wireless icon in the panel says the wireless connection is active, varying between 40 and 65%. connection immediately.

When I try to access pages on Chrome, I am getting Error 101, error 324 intermittently. It seems to be OK for 2 or 3 page accesses then just blocks up on me and reports these errors.

Firefox is no better, eg a google search on fool discussion boards delivered results but when I try to go to one of the links I get nothing - on the panel Network monitor shows a spike and then the accesses disappear.

I am complete newbie - any ideas ?

I have installed the linux-backports modules and restarted - seems no better !


The output from is
__________________________________
*-network:0
description: Wireless interface
product: AR2413 802.11bg NIC
vendor: Atheros Communications Inc.
physical id: 4
bus info: pci@0000:02:04.0
logical name: wmaster0
version: 01
serial: 00:11:f5:e9:eb:22
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list logical ethernet physical wireless
configuration: broadcast=yes driver=ath5k ip=192.168.0.4 latency=168 maxlatency=28 mingnt=10 multicast=yes

wireless=IEEE 802.11bg
resources: irq:20 memory:c0200000-c020ffff
*-network:1
description: Ethernet interface
product: RTL-8139/8139C/8139C+
vendor: Realtek Semiconductor Co., Ltd.
physical id: 7
bus info: pci@0000:02:07.0
logical name: eth0
version: 10
serial: 00:a0:d1:2f:f7:b6
size: 10MB/s
capacity: 100MB/s
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=8139too driverversion=0.9.28 duplex=half latency=64 link=no

maxlatency=64 mingnt=32 multicast=yes port=MII speed=10MB/s
resources: irq:20 ioport:a000(size=256) memory:c0215000-c02150ff
*-network DISABLED
description: Ethernet interface
physical id: 3
logical name: vboxnet0
serial: 0a:00:27:00:00:00
capabilities: ethernet physical
configuration: broadcast=yes multicast=yes
__________________________________________________ ________________________________

The output from ifconfig is
________________________________________
eth0 Link encap:Ethernet HWaddr 00:a0:d1:2f:f7:b6
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:20 Base address:0xa000

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:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

wlan0 Link encap:Ethernet HWaddr 00:11:f5:e9:eb:22
inet addr:192.168.0.4 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::211:f5ff:fee9:eb22/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:16261 errors:0 dropped:0 overruns:0 frame:0
TX packets:13923 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:8576402 (8.5 MB) TX bytes:2034691 (2.0 MB)

wmaster0 Link encap:UNSPEC HWaddr 00-11-F5-E9-EB-22-65-39-00-00-00-00-00-00-00-00
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)
__________________________________________________ ___________

[Sleig]

Hi. Any fix? I seem at have the same problem

[Open4D]

Hi. Any fix? I seem at have the same problem

Yes. Bug 568090's description includes a workaround - adding one line to file /etc/modprobe.d/custom-wireless.conf (and creating the file if it doesn't already exist).

https://bugs.launchpad.net/ubuntu/+s...ux/+bug/568090

[yelvington]

++ this thread.

It has (knock on wood) saved me from ordering a usb wifi adaptor for my elderly mother's Toshiba. It's been running Ubuntu for years but recently stopped networking, so I upgraded it to Maverick only to run into this weird intermittent whitescreen problem with Web pages. No errors appeared in the system logs. I narrowed it down to the laptop (my devices all work fine on the network) and managed to find this thread through Google -- but it took dozens of attempts to get this site to render.

I installed both the cited fixes, and all seems well at this point (knock on wood again).