Atheros AR9285 Wireless on Ubuntu 12.04 is slow, unstable and has a weak signal.

Bug #947697 reported by gui_link_mac
106
This bug affects 23 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Expired
High
Unassigned

Bug Description

In Windows 7 the signal is excellent, stable and strong. I use the netbook for every home, but in Ubuntu you can only connect a few meters away. In my university can not connect because the signal is too weak. In Windows 7 is okay. Everyone in my building at the university can connect very well with Windows. Who uses computer ath9k driver, no.

Just search on Google to know that everyone who uses Atheros AR9285 have problems, even with computer hardware certified by Canonical:
http://www.ubuntu.com/certification/catalog/component/pci:002B:168C-NETWORK

My computer: Asus EeePC 1215B - APU AMD C-50, 2GB RAM.
Distro: Ubuntu 12.04 Beta 1 - 32-bit (64-bit the problem continues)
Kernel (uname -a): 3.2.0-18-generic-pae #28-Ubuntu SMP Fri Mar 2 22:11:12 UTC 2012 i686 athlon i386 GNU/Linux
Driver wireless: ath9k

Network:
idescrição: Interface sem fio
produto: AR9285 Wireless Network Adapter (PCI-Express)
fabricante: Atheros Communications Inc.
physical id:
0
informações do barramento:
pci@0000:01:00.0
nome lógico:
wlan0
versão: 01
largura: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuração:
broadcast = yes
driver = ath9k
driverversion = 3.2.0-18-generic-pae
firmware = N/A
ip = 192.168.1.2
latency = 0
link = yes
multicast = yes
wireless = IEEE 802.11bgn
recursos:
irq : 16
memória : fea00000-fea0ffff

gui_link_mac (gui84mac)
description: updated
Revision history for this message
Ubuntu Foundations Team Bug Bot (crichton) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/947697/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

tags: added: bot-comment
gui_link_mac (gui84mac)
affects: ubuntu → wireless-drivers
gui_link_mac (gui84mac)
description: updated
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in ubuntu:
status: New → Confirmed
Revision history for this message
penalvch (penalvch) wrote :

gui_link_mac, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the kernel in the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested and remove the tag:
needs-upstream-testing

This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the text:
needs-upstream-testing

If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested.

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested.

If you are unable to test the mainline kernel, please comment as to why specifically you were unable to test it and add the following tags:
kernel-unable-to-test-upstream
kernel-unable-to-test-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested.

Please let us know your results. Thank you for your understanding.

Helpful Bug Reporting Links:
https://help.ubuntu.com/community/ReportingBugs#Bug_Reporting_Etiquette
https://help.ubuntu.com/community/ReportingBugs#A3._Make_sure_the_bug_hasn.27t_already_been_reported
https://help.ubuntu.com/community/ReportingBugs#Adding_Apport_Debug_Information_to_an_Existing_Launchpad_Bug
https://help.ubuntu.com/community/ReportingBugs#Adding_Additional_Attachments_to_an_Existing_Launchpad_Bug

affects: wireless-drivers → linux
affects: ubuntu → linux (Ubuntu)
Changed in linux (Ubuntu):
importance: Undecided → High
status: Confirmed → Incomplete
tags: added: kernel-wifi needs-kernel-logs needs-upstream-testing
removed: ar9285 ath9k atheros wireless
Revision history for this message
Miek Gieben (miek) wrote :

I'm right now using: 3.5.0-11-generic #11~precise1-Ubuntu as a kernel. And that seems to make a big difference. Also just using network manager.

Revision history for this message
Miek Gieben (miek) wrote :

Well, spoke too soon. There are still disconnects -- allthough less. But also annoying stalls, prolly during re-keying events.

Revision history for this message
Miek Gieben (miek) wrote :

A new day, a new kernel: 3.6-rc3, suspend&resume does not work anymore, but the wireless as much more stable.

Revision history for this message
Miek Gieben (miek) wrote :

Also def. ipv6 is involved somehow. I'm using "Link-local only" in network manager, setting it to 'automatic' will get you disconnects.

Revision history for this message
n0PxN0p (n0pxn0p) wrote :

I confirm unstable work of AR9285:

04:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)

Tested on clean air environments with high quality signals on access points from different manufacturers including mikrotik, cisco and even d-link equipped with atheros/realtek and other wlan modules.
Currently:
The strange thing is that somehow i often see the picture when ping is extremely unstable without any logical reasons, after few minutes of work it goes up to 2k miliseconds while logs keep silence and test from another laptops and mobile phones show that everything should be fine. I always had some problems related to stability of ar9285 work but current symptoms make it impossible to continue to work with it. I will try to get bleeding-edge compat-wireless and to build ath9k module with btcoex disabled, but it will take some time for me. By the way if i remember well current symptoms appeared after kernel update.

Under:

Linux uhost 3.2.0-30-generic #48-Ubuntu SMP Fri Aug 24 16:52:48 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

root@uhost:~# modinfo ath9k
filename: /lib/modules/3.2.0-30-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko
license: Dual BSD/GPL
description: Support for Atheros 802.11n wireless LAN cards.
author: Atheros Communications
srcversion: 01F684AA969715028EA1301
alias: platform:ar934x_wmac
alias: platform:ar933x_wmac
alias: platform:ath9k
alias: pci:v0000168Cd00000034sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000033sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000032sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000030sv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Esv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Dsv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Csv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Bsv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Asv*sd*bc*sc*i*
alias: pci:v0000168Cd00000029sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000027sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000024sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000023sv*sd*bc*sc*i*
depends: ath9k_hw,ath9k_common,mac80211,cfg80211,ath
intree: Y
vermagic: 3.2.0-30-generic SMP mod_unload modversions
parm: debug:Debugging mask (uint)
parm: nohwcrypt:Disable hardware encryption (int)
parm: blink:Enable LED blink on activity (int)
parm: btcoex_enable:Enable wifi-BT coexistence (int)

Revision history for this message
n0PxN0p (n0pxn0p) wrote :

Built from http://www.orbit-lab.org/kernel/compat-wireless/2012/09/compat-wireless-2012-09-05.tar.bz2
"looks like" my current problem is sovled

I also confirm the above mentioned fact that everything works flawless under windows 7 :/

Revision history for this message
Helder (heldrida) wrote :

Constant disconnections for me. New computer, Atheros Communications Inc. AR9462 Wireless Network Adapter (rev 01)

It's very annoying!

Revision history for this message
penalvch (penalvch) wrote :

Miek Gieben / n0PxN0p / Helder, could you please file a new report by executing the following in a terminal:
ubuntu-bug linux

For more on this, please see the Ubuntu Bug Control and Ubuntu Bug Squad article:
https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue

and Ubuntu Community article:
https://help.ubuntu.com/community/ReportingBugs#Bug_Reporting_Etiquette

When opening up the new report, please ensure that the following information is provided https://wiki.ubuntu.com/Kernel/LinuxWireless#Bug_Report_Minimum_Requirement_Information .

As well, feel free to subscribe me to it. Thank you for your understanding.

Helpful Bug Reporting Links:
https://help.ubuntu.com/community/ReportingBugs#A3._Make_sure_the_bug_hasn.27t_already_been_reported
https://help.ubuntu.com/community/ReportingBugs#Adding_Apport_Debug_Information_to_an_Existing_Launchpad_Bug
https://help.ubuntu.com/community/ReportingBugs#Adding_Additional_Attachments_to_an_Existing_Launchpad_Bug

Revision history for this message
Miek Gieben (miek) wrote : Re: [Bug 947697] Re: Atheros AR9285 Wireless on Ubuntu 12.04 is slow, unstable and has a weak signal.

[ Quoting <christopher.penalver@gmx.> in "[Bug 947697] Re: Atheros AR9285 Wir..." ]
> Miek Gieben / n0PxN0p / Helder, could you please file a new report by executing the following in a terminal:
> ubuntu-bug linux

This fails, because I'm running a mainline kernel. Any ideas on how to proceed?
3.6.1 makes it again better, but still does not fix it.

 Regards,

--
    Miek Gieben http://miek.nl

Revision history for this message
penalvch (penalvch) wrote :

Miek Gieben, in order to file a bug report, you would need to boot into a kernel that comes with Ubuntu. For example, https://launchpad.net/ubuntu/+source/linux .

Revision history for this message
Mau (maugarta-cc) wrote :

I have solved my atheros wifi problem removing the "connman" package, and then installing the network-manager and network-manager-gnome packages.
It seems that connman doesn't work fine.

Mau.

Revision history for this message
blasco51 (blasco-bonito) wrote :

It looks like the instability problem went away installing the package linux-backports-modules-cw-3.6-quantal-generic

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in bluez (Ubuntu):
status: New → Confirmed
penalvch (penalvch)
affects: linux → bluez (Ubuntu)
no longer affects: bluez (Ubuntu)
tags: added: precise
Revision history for this message
Mau (maugarta-cc) wrote :

In my Atheros AR5BXB63 (lspci shows AR242x / AR542x), I think this bug has been solved with the linux-image-3.2.0-32, but after the installation of the 3.2.0-33, this bug has come back. So I have had to return to the 3.2.0-32 linux kernel version

Mau

Revision history for this message
penalvch (penalvch) wrote :

Mau, if you have a bug in Ubuntu, could you please file a new report by executing the following in a terminal:
ubuntu-bug linux

For more on this, please see the Ubuntu Kernel team article:
https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports

the Ubuntu Bug Control team and Ubuntu Bug Squad team article:
https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue

and Ubuntu Community article:
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Please note, not filing a new report may delay your problem being addressed as quickly as possible.

Thank you for your understanding.

Revision history for this message
ryan fultz (ryan-fultz) wrote :

Hey there I think I know the problem this worked for me I hope it works for you.
Open terminal and paste this code
sudo iwconfig wlan0 txpower 8B26
because by default the txpower is excessive for the ath driver which causes it to actually perform worse I'm not even kidding! Hope it works, let me know the results

Revision history for this message
penalvch (penalvch) wrote :

ryan Fultz, if you have a bug in Ubuntu, could you please file a new report by executing the following in a terminal:
ubuntu-bug linux

For more on this, please see the Ubuntu Kernel team article:
https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports

the Ubuntu Bug Control team and Ubuntu Bug Squad team article:
https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue

and Ubuntu Community article:
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Please note, not filing a new report may delay your problem being addressed as quickly as possible.

Thank you for your understanding.

Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
Revision history for this message
SavageFX (savagefx) wrote :

I can confirm that this bug still exists. I had it in 12.04, then 12.10 and now in 13.04 it's still there.
signal in windows 7 (dual boot) is perfect. In kubuntu the connection drops continuously. Tested on almost a dozen different.
using ath9k 3.8 drivers (latest stable ath9k drivers).
If I can supply any more information, let me know. I'd really appreciate a fix because bad or no wifi access sucks if you're an on-the-road worker like me.

Changed in linux (Ubuntu):
status: Expired → Confirmed
Revision history for this message
MinSik CHO (mscho527) wrote :

I'm using U45JC (ASUS) which has AR9285 chip, and the situation is more adverse.

After 5 minutes - 2 hrs or any time duration, the chip just disappears.
It is not shown in iwconfig or ifconfig, and system tray.

I've tried and seen bugs regarding ar9285 from at least Lucid, but it seems that nothing is being fixed upstream.

tags: added: raring
Revision history for this message
penalvch (penalvch) wrote :

SavageFX / MinSik CHO, if you have a bug in Ubuntu, could you please file a new report by executing the following in a terminal:
ubuntu-bug linux

For more on this, please see the Ubuntu Kernel team article:
https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports

the Ubuntu Bug Control team and Ubuntu Bug Squad team article:
https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue

and Ubuntu Community article:
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Please note, not filing a new report may delay your problem being addressed as quickly as possible.

Thank you for your understanding.

Changed in linux (Ubuntu):
status: Confirmed → Incomplete
tags: removed: raring
Revision history for this message
Fabrício Pereira (fabriciorsf) wrote :

This bug don't let me work on ubuntu!!!!

Revision history for this message
Fabrício Pereira (fabriciorsf) wrote :
Revision history for this message
penalvch (penalvch) wrote :

fabriciorsf, if you have a bug in Ubuntu, the Ubuntu Kernel team, Ubuntu Bug Control team, and Ubuntu Bug Squad would like you to please file a new report by executing the following in a terminal:
ubuntu-bug linux

For more on this, please see the Ubuntu Kernel team article:
https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports

the Ubuntu Bug Control team and Ubuntu Bug Squad team article:
https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue

and Ubuntu Community article:
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Please note, not filing a new report would delay your problem being addressed as quickly as possible.

Thank you for your understanding.

Revision history for this message
Fabrício Pereira (fabriciorsf) wrote :

I just upgrade to linux-backports-modules-cw-3.6-3.5.0-32-generic, and seems to have solved this bug.

Revision history for this message
Nikolaj Sheller (nikolajsheller) wrote :

This problem affects me on 13.04.

Stable connection with good ping times, but throughput is measured in 10-20 kB/s.
Other linux machines on the same access point (NETGEAR WNDR3700v2) get 0.5 to 1 mB/s.

Revision history for this message
Nikolaj Sheller (nikolajsheller) wrote :

I suspect this bug should be merged with bug 1168819.

Revision history for this message
Nikolaj Sheller (nikolajsheller) wrote :

New bug created as requested: bug 1199132.

Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
Fernando D. (fdbozzo)
Changed in linux (Ubuntu):
status: Expired → Confirmed
Revision history for this message
Fernando D. (fdbozzo) wrote :

Nice, bugs expiring because nobody fixing it :-(

Revision history for this message
penalvch (penalvch) wrote :

Fernando D., if you have a bug in Ubuntu, the Ubuntu Kernel team, Ubuntu Bug Control team, and Ubuntu Bug Squad would like you to please file a new report by executing the following in a terminal while booted into a Ubuntu repository kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Please note, not filing a new report would delay your problem being addressed as quickly as possible.

No need exists to comment here at this time. After reading the above documentation in it's entirety, if you have further questions, you are welcome to redirect them to the appropriate mailing list or forum via http://www.ubuntu.com/support/community/mailinglists , or you may contact me directly.

Thank you for your understanding.

Changed in linux (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
GreyGeek (greygeek77) wrote :
Download full text (3.7 KiB)

I've been having this problem with my AR9462 wifi chip for several months. It randomly disconnects, with the uptime varying between a minute and 10 minutes. The speed often drops to 1Mb/s and remains there, rendering the connection worthless.
I've tried a variety of kernels from 3.2 to 3.8.
I've tried various combinations of the ath9k params, but no combination seems to help the 0168C, 0034 device.
Dmesg merely reports:
[94720.719145] wlan0: authenticate with 20:aa:4b:3a:85:e3 (try 1)
[94720.721300] wlan0: authenticated
[94720.733950] wlan0: associate with 20:aa:4b:3a:85:e3 (try 1)
[94720.736683] wlan0: RX ReassocResp from 20:aa:4b:3a:85:e3 (capab=0x411 status=0 aid=1)
[94720.736696] wlan0: associated
[94726.045203] cfg80211: Calling CRDA to update world regulatory domain
[94726.051433] cfg80211: World regulatory domain updated:
[94726.051438] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
......
[94726.051478] cfg80211: Calling CRDA for country: US
[94726.059167] cfg80211: Regulatory domain changed to country: US
[94726.059173] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
...
[94730.104613] wlan0: authenticate with 20:aa:4b:3a:85:e3 (try 1)
[94730.302223] wlan0: authenticate with 20:aa:4b:3a:85:e3 (try 2)
[94730.502096] wlan0: authenticate with 20:aa:4b:3a:85:e3 (try 3)
[94730.702006] wlan0: authentication with 20:aa:4b:3a:85:e3 timed out
[95190.831209] wlan0: authenticate with 20:aa:4b:3a:85:e3 (try 1)
[95190.833185] wlan0: authenticated
[95190.845795] wlan0: associate with 20:aa:4b:3a:85:e3 (try 1)
[95190.849700] wlan0: RX ReassocResp from 20:aa:4b:3a:85:e3 (capab=0x411 status=0 aid=1)
[95190.849705] wlan0: associated
[95359.802393] cfg80211: Calling CRDA to update world regulatory domain
[95359.805724] cfg80211: World regulatory domain updated:
[95359.805727] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
...
[95359.805750] cfg80211: Calling CRDA for country: US
[95359.809011] cfg80211: Regulatory domain changed to country: US
[95359.809013] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
...
[95391.685123] wlan0: authenticate with 20:aa:4b:3a:85:e3 (try 1)
[95391.687191] wlan0: authenticated
[95391.833768] wlan0: associate with 20:aa:4b:3a:85:e3 (try 1)
[95392.033399] wlan0: associate with 20:aa:4b:3a:85:e3 (try 2)
[95392.233224] wlan0: associate with 20:aa:4b:3a:85:e3 (try 3)
[95392.433109] wlan0: association with 20:aa:4b:3a:85:e3 timed out
[95824.493528] wlan0: authenticate with 20:aa:4b:3a:85:e3 (try 1)
[95824.497611] wlan0: authenticated
[95824.645228] wlan0: associate with 20:aa:4b:3a:85:e3 (try 1)
[95824.841283] wlan0: associate with 20:aa:4b:3a:85:e3 (try 2)
[95825.041185] wlan0: associate with 20:aa:4b:3a:85:e3 (try 3)
[95825.241075] wlan0: association with 20:aa:4b:3a:85:e3 timed out
[95829.302583] wlan0: authenticate with 20:aa:4b:3a:85:e3 (try 1)
[95829.304585] wlan0: authenticated
[95829.317308] wlan0: associate with 20:aa:4b:3a:85:e3 (try 1)
[95829.320003] wlan0: RX ReassocResp from 20:aa:4b:3a:85:e3 (capab=0x411 status=0 aid=1)
[95829.320007] wlan0: associated
[95852.748782] wlan0: deauthen...

Read more...

Revision history for this message
penalvch (penalvch) wrote :

GreyGeek, if you have a bug in Ubuntu, the Ubuntu Kernel team, Ubuntu Bug Control team, and Ubuntu Bug Squad would like you to please file a new report by executing the following in a terminal while booted into a Ubuntu repository kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Please note, not filing a new report would delay your problem being addressed as quickly as possible.

No need exists to comment here at this time. After reading the above documentation in it's entirety, if you have further questions or comments, you are welcome to redirect them to the appropriate mailing list or forum via http://www.ubuntu.com/support/community/mailinglists , or you may contact me directly.

Thank you for your understanding.

Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
SavageFX (savagefx)
Changed in linux (Ubuntu):
status: Expired → Incomplete
Revision history for this message
SavageFX (savagefx) wrote :

I can confirm that this bug still exists and have therefore put the status back to incomplete. I've been experiencing it day in and out (to my great frustration) for the past 18 months or so. The behavior is consistent across maybe 2 dozen wifi networks in equally many locations.

My wifi range and stability is still many times better in Windows than it is in Kubuntu Linux (this is a dualboot system). In many places like public libraries, where the laptop can be quite far from the actual wifi receiver, I still have good signal and multi-MB/s download speeds in windows while in ubuntu I cannot see the network, cannot connect to the network or sometimes can connect but it drops every minute or so.

If I sit right next to a wifi receiver I have an excellent and uninterrupted connection for hours on end, so I'm quite convinced that generally speaking, the driver works well, but that the problem is simply a much more limited range (transmission power?) than in windows.

I'm running Kubuntu Linux 13.10 with kernel 3.11.0-18-generic.
My laptop is a Lenovo b570e.

I hope that this bug will eventually get fixed, as I still prefer Linux as an OS but find myself needing to switch to Windows in most public locations or being the weirdy who insists on running an ethernet cable across the room because I don't have decent wifi in Linux :-/

If there is anything I can do to assist in fixing this bug, just let me know! I'd really to help this get solved but I'm completely unfamiliar with linux/kernel/driver programming.

Revision history for this message
SavageFX (savagefx) wrote :

PS: There is quite a bit of information when I searched Google, though it's a bit hard to find and none of the suggested fixes work.
However, as far as I can tell, this really is a driver issue, so I'm wondering is Ubuntu launchpad is the correct place to tackle this issue, since - afaik - this requires a kernel fix, not a fix in the Ubuntu code?

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penalvch (penalvch) wrote :
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SavageFX (savagefx) wrote :

At the request of penalvch (see above), I've created a new bug report using ubuntu-bug linux over at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300296

To anyone suffering from this bug -> please head over to the link above. At the top there will be a piece of green text "this bug affects x people" -> If you click it you can indicate that the bug also affects you. I suggest you do this so developers can see that this is not an isolated issue.

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Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
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ruthan (ruthan) wrote :

I have Samsung 145 netbook, on windows and in Android x86 is Wifi ok, i have strange cant connect issue during browsing and apt-get operation, stragely ping was still good.
   Solution was completely disable ipv6 and set to ignore ipv6 in network manager..

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