Same issue here with network controller: Intel Corporation WiFi Link 5100
Everything was working perfectly with previous versions of Ubuntu, but Oneiric
11.10.
#42 from Damon solved my problem
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I installed wicd and the problem went away. No other changes were in
place (no disable_n etc). This was when connected to an N router. With
network-manager connected to same router connection was unusable.(could
not fully load any web page without stalling).
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Can confirm this bug on my Portege m700 with Intel Corporation
PRO/Wireless 4965.
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Title:
[Oneiric] Intel Corporation
Hi,
I am experiencing the same issue with Network controller: Intel Corporation
WiFi Link 5100
Everything was working perfectly with previous versions of Kubuntu (i am using
KDE), but Oneiric 11.10.
The connection is extremely slow and drops to 0 Kib.s. I am able to get a
correct speed
With my configuration, the iwlwifi-1000-3.ucode causes packetloss with
3.1.0.
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Title:
[Oneiric] Intel Corporation
@mathieu-tl: While I appreciate the suggestion of using mainline builds,
I simply do not have the resources available to continue to update and
test the various builds. This is a real issue that exists with the
upgrade to 11.10 that must be resolved and not marked as either invalid
or that offers
This bug is only marked Invalid for NetworkManager, it's still open
(Triaged, with someone assigned) to be looked at in terms of kernel
drivers, configuration and whatnot.
I appreciate your concerns, but I'm just marking this as not an issue
in NetworkManager, because quite honestly I couldn't
Something interesting, I upgraded to Linux-3.1, left the 11n_disable=1
in /etc/modprobe.d/options.conf, and my wireless drops off at very
random times. I have to disable/re-enable my wireless to get
connectivity back. However, when I downgraded to 3.0.8, connectivity
is stable again. I will try
Even without the 11n_disable=1 option in etc/modprobe.d/options.conf,
with the 3.1 kernel, the wireless drops at random.
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I installed 3.1.0-030100-generic #201110241006 SMP Mon Oct 24 14:07:10
UTC 2011 x86_64 x86_64 x86_64 GNU/Linux and did some further testing.
With the router operating in N mode the connection is stable and
performance is very good. When I switch the router to B/G/Mixed (no
N), the connection is
As suggested in this bug:
http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2314
I reverted to the older microcode (iwlwifi-1000-3.ucode) and performance
in G mode is quite a bit better, but still not as good as it should be.
** Bug watch added: bugzilla.intellinuxwireless.org/ #2314
Experiencing the same issue with wireless after upgrade from 11.04 to
11.10 on an ASUS R1Eseries, using iwl4965. Used suggestion to try and
change wireless router from using 802.11-N G to just 802.11 G.
Wireless started to work again, however, I cannot keep it in the G mode
due to other devices
My apologies, but suggesting to use WICD isn't helping fixing any
issues. Furthermore, it's doubtful it really fixes the issues by itself,
let alone without introducing other issues (such as whether applications
will notice they are online in this case).
Please, test with the mainline kernel as
Obviously, I never ment to imply for WICD to be a permanent, viable
solution to this issue. However, as for my concern .. this is my
workstation I use at home and at home. I cannot tinker with as much as I
would like to since I require its service each and every day. Thus, I
was looking for a
Moritz, are you still using 11n_disable=1 with WICD?
I suspect there might be two problems here. The first problem being N
not working correctly. You can find the 11n_disable=1 trick documented
for numerous distros. Based on my testing with Fedora 16 beta and the
mainline 3.1 kernel in 11.10,
Same issue here with
0c:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or
AGN [Kedron] Network Connection (rev 61)
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@DDC:
No, I'm not using any switch or custom kernel. I'm only using WICD and
the regular driver. The issues are completely gone (iwlagn N-6300 on a
decent 300Mbit N-network).
I tested Fedora 15 and the issues didn't occur either.
NetworkManager is a part of the problem.
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Dell Studio 1747 with Broadcom BCM43224/4353 here. It would see and
connect to the router, but zero traffic happening.
I have now disabled 802.11N directly in the router and am using G
instead. This works fine, but should only be seen as a temporary
workaround.
While troubleshooting, I was
FYI, I installed Fedora on my X220 (Intel N-6205) yesterday the all the
issues completely vanished. Looks as though this is specific to Ubuntu.
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I grabbed the latest Fedora 16 beta which uses 3.1.0-rc6 and my wireless
works perfectly. Both F16 beta and 11.10 are using the same firmware:
iwlagn :03:00.0: loaded firmware version 39.31.5.1 build 35138
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@Mortiz and @DDC
Would it be possible for you to test the latest upstream kernel on Ubuntu?
Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the
release candidate kernel versus the daily build.
** Tags added: needs-upstream-testing
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Hi
Same here on a DELL E6510 - updated from 11.04 - had to follow #42 and now it
works perfect ;)
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Title:
[Oneiric]
what i did was
sudo apt-get purge network-manager network-manager-gnome
then i installed 'WICD'
it works and i dont have to sacrifice my N
cheers
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@Joseph: I'm going to give it a whirl during the weekend.
@make: Are you sure your card is connecting at N-speeds? Over here the
connection keeps dwindling at around G-speeds. I don't know whether it
actually using the N-band.
wlan0 IEEE 802.11abgn ESSID:xx
Mode:Managed
Apologies. Disregard my earlier comment. I had the router set to G-only
mode.
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Title:
[Oneiric] Intel Corporation
Good news and bad news. I'm now running this:
Linux foo 3.1.0-030100rc10-generic #201110200610 SMP Thu Oct 20 10:11:32
UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
The good news is that I have a stable connection with N enabled (not
using 11n_disable=1) and performance is good so far. I can't seem
** Tags added: kernel-key
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Title:
[Oneiric] Intel Corporation Centrino Ultimate-N 6300 poor networking,
packet loss and
I have a Intel Corporation Centrino Wireless-N 1000 (8086:0084) in a
Thinkpad x220. In 11.04, I had good performance once I added options
iwlagn 11n_disable=1. With 11.10 i'm using the same configuration.
The connection is stable, but the performance is noticeably worse.
For example, I'm
Just to add to the above, I have great link quality.
wlan0 IEEE 802.11bg ESSID:ssid
Mode:Managed Frequency:2.462 GHz Access Point: mac
Bit Rate=54 Mb/s Tx-Power=14 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Same issue here with a Thinkpad X200s and built in Intel 5300 agn on 11.10 with
3.0.0.12-generic kernel.
After disabling n-draft, networkbitrate in iwconfig changed to 54mbit (802.11g)
but it is still very slow (Internet, browsing smb)
The same under normal n-draft conditions.
Sometimes if i
@ Joseph Salisbury (jsalisbury) wrote on 2011-10-18:#43
I have a separate disk with a fully updated 11.04 on as of today
(updates recently applied). 11.04 does not suffer from these networking
issues at all, only 11.10.
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** Changed in: linux (Ubuntu Oneiric)
Status: Confirmed = Triaged
** Changed in: linux (Ubuntu Precise)
Status: Confirmed = Triaged
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I filed a bug with the Intel Wireless bugtracker reporting the exact
same issues:
http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2315
It hasn't gotten a lot of attention lately (read: has been abandoned).
** Bug watch added: bugzilla.intellinuxwireless.org/ #2315
I had this issue on 2 laptops, both with Intel cards. One was an Intel
WiFi Link 5100, the other was an Intel Pro 4965AGN
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Me too! With my Acer AspireOne/Intel Centrino Wireless-N 1000 card. Acer
works fine on 11.04 (which I have had to fall back to.)
11.10 works with ethernet (c. 800KiB/s) but 0 - ten's or hundreds of B/s (not
KiB) so totally unusable, tho some connectivity.
11.10 works fine on my Broadcom
I have the same problem with my HP Elitebook 8540w, Centrino Intel-N 7300.
However I notice something else as well, that has to do with this matter. The
notebook has a button with which you can enable/disable wireless, the light on
the button will then change from blue(enabled) to
I'm having the same problem. Working on TravelMate 5720, previously on Kubuntu
11.04 worked fine, now on 11.10 I'm having like 40-80% packet loss.
lspci:
Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev
61)
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Lenovo T400, Intel 6100
poor wlan-performance and the networksmanager loose the connection
within minutes and ask again the network-password.
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I noticed the same problem (can't connect to the wireless network after
upgrading from 11.04 to 11.10) on Lenovo ThinkPad T500.
lspci:
Intel Corporation PRO/Wireless 5100 AGN [Shiloh]
The work around disabling n also worked for me:
sudo rmmod iwlagn
sudo echo options iwlagn 11n_disable=1
@Dave Russell and/or others affected by this bug
Do you have the option to boot back into a natty kernel and confirm it's
not an issue?
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@Joseph Salisbury
I have booted back in to my previous kernel (2.6.39), and still had the
problem described in this bug report.
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Interesting. The original bug reporter stated:
Both work perfectly with fully updated 10.10 and 11.04 versions of
Ubuntu.
Are there are folks that can test prior versions of the kernel to see
when this issue was introduced?
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On 18/10/11 17:55, Joseph Salisbury wrote:
Are there are folks that can test prior versions of the kernel to see
when this issue was introduced?
Having followed Alpha 2 - Release 11.10 via upgrades, and still having
problems, I did a complete 11.10 install but probs still there.
So I
@Joseph Salisbury
I just booted in to my previous kerne againl, and wireless did in fact work.
It looks like my previous assertion was wrong, or that this bug only manifests
itself in the previous kernel when connecting to certain routers (I am at work
now).
Sorry for the confusion!
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Here's the problem with using previous kernels. I tried several things
immediately after installing 11.10. I tried the latest upstream kernel,
3.0.6 (at the time), and I also tried the latest developmental build
with 3.1-RC9, both kernels had the same issue. However, both kernels did
NOT have this
I have experienced these same problems when running 11.10 on a Lenovo
ThinkPad X220 and Intel n-1000 card. However, applying Damon's fix
(#42) resolves this issue. Thanks Damon!
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Try turning the power managment for the wireless card off but using this
command sudo iwconfig wlan0 power off
this worked for me
cheers
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Same here, wireless very slow, running on a lenovo ThinkPad T410. Wired
connection is ok.
Workaround: disable 11n (sudo modprobe iwlagn 11n_disable=1) in
/etc/modprobe.d/options.conf
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Also on a T410. When using n connections, my router (Speedport 504V,
Type A) gets so confused that after some seconds, the T410's and all
other connections are cancelled and the router takes some minutes to
regain composure. Deactivating n, everything works well.
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I'm not sure if I have the same problem, but I think so. I have a
Packard Bell Ml61, and after upgrading to Oneiric I have trouble with
the wireless. I can connect, but it takes ages and I have to keep typing
in the password (it's set as automatic connection). When I'm finally
connected, the
Very slow wireless-n connection here too. Connection speed down to 1 MBit/s.
lenovo ThinkPad T410 running Kubuntu 11.10 Oneiric.
Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35)
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On a Dell Studio and just upgraded from Ubuntu 11.04 to 11.10...
Had perfect, strong wi-fi connection with 11.04 at a moderate distance
from router...
On upgrade to 11.10, connection strength shows as very weak at same
distance from router and keeps disconnecting automatically every few
same problem here with dell latitude 6410, intel centrino ultimate N6300
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Title:
[Oneiric] Intel Corporation Centrino
Solved it following a mimic of alex solution (#23)
added archive
/etc/modeprobe.d/intel-6300.config
with line
options iwlagn 11n_disable=1
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I'm getting this too. Intel Centrino Wireless-N 1000 on a Lenovo E420s.
Was fine under Natty. Frustratingly slow connection under Oneiric.
I can't easily get access to the router. Is there a corresponding work-around
for this card?
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Same problem here:
Laptop ASUS z53sv, with wi-fi module iwl4965, Ubuntu 11.10 (worked fine
ultil ubuntu 11.04)
Wifi very slow with router at 802.11B/N. When disabled 802.11B/N and
force only 802.11B, wireless came back to normal.
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** Tags added: regression-release
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Title:
[Oneiric] Intel Corporation Centrino Ultimate-N 6300 poor networking,
packet
I have this problem after upgrading to Oneiric with an Intel Advanced-N
6200 wifi card. I seem to have temporarily fixed the problem by adding
this line to /etc/modprobe.d/intel-6200.conf:
options iwlagn 11n_disable=1
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I have an Intel 5300 in my laptop and was also facing the problems with
N, it was actually locking up my router within a few seconds of
connecting. 15 minutes now after applying Alex's temporary fix all
seems well.
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I have a lenovo thinkpad e320 with Intel Centrino Wireless-N 1000 card
with the same problem running Oneiric. Can anyone tell me how to disable
wireless N with my card? There is no conf file for it in my modprobe.d
folder.
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I'm also seeing very slow speeds with Wireless-N using an Intel
Advanced-N 6205 adapter, after updating to Oneiric (did the update about
a week ago, before the final came out). Have applied all updates. Tried
to create the file Alex mentioned above, but it didn't seem to improve
things.
I'm
Just re-booted and I'm getting somewhat better speeds with now - not
sure if the networking restart that that I had tried before actually
restarted networking, since there was a message about that method being
deprecated, but maybe the conf file does disable N for this adapter
(wasn't sure what to
I have this problem too.
My network controler is: Ultimate-n 6300
Desactiving 802.11N on router solves the problem.
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Problem still exists for me after latest update. Still very slow on
802.11N connection, normal on 802.11G/B. I have two access points on
same network so I can easily test back to back.
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My problem got fixed by updating...
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Title:
[Oneiric] Intel Corporation Centrino Ultimate-N 6300 poor networking,
Don't know if it is the same, but I can't connect to my wireless network
from a Dell Studio 1749. It seems like my networkcard starts to rescan
before it even can't connect.
Everything was working well on 11.04 and shortly after an update to
11.10beta. Troubles began with updating about a week
** Also affects: linux (Ubuntu Precise)
Importance: Undecided
Status: New
** Also affects: network-manager (Ubuntu Precise)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Precise)
Status: New = Confirmed
** Changed in: network-manager (Ubuntu Precise)
Wifi is very slow, but ethernet is OK.
Upload:
wifi: ~30 KiB/s
ethernet: ~400 KiB/s
Tried Kubuntu 10.04 Live CD - wifi speed is good.
I am ready to do any testing as this is my wife's laptop and she wants
to switch back to slow Vista :)
$ lspci
00:00.0 Host bridge: Intel Corporation Mobile
Some data from me:
Sitting around 3m away from the router I get:
Wifi quality: 150Mbps, 89%
--- google.com ping statistics ---
1035 packets transmitted, 1035 received, 0% packet loss, time 1039286ms
rtt min/avg/max/mdev = 22.178/33.084/1276.174/59.218 ms, pipe 2
System:
Thinkpad T510 on Kubuntu
** Changed in: network-manager (Ubuntu Oneiric)
Milestone: None = oneiric-updates
** Changed in: linux (Ubuntu Oneiric)
Milestone: None = oneiric-updates
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does this mean i can ubuntu update to get these changes? or do i need to
get it from a special ppa? thanks
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Title:
Hi All,
I'm having this issue on a Lenovo T510.
hardware is a Centrino Ultimate N 6300.
also did you guys upgrade or fresh install? I did an upgrade. if you
want all the logs I can get it later, i'm booted into W7 cause Ubuntu is
unusable.
thanks,
DJ
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Are any of these issues directly related to having both wired and
wireless connected at the same time? Because then this would not be
device-specific, and is in fact an issue with libnl.
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In my reproduction case, I do not have wired ethernet connected.
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Title:
[Oneiric] Intel Corporation Centrino Ultimate-N
same with me.
I was not able to connect at all in N-only mode, in N/G mixed mode i can
connect but unusably slow. What shocks me is that if this is an issue
with iwlagn or network manager shouldn't this be effecting more people?
what could have changed in the parts specific to the Centrino
Turned on NM debugging as per:
http://live.gnome.org/NetworkManager/Debugging
Environment is 802.11 b+g+n on my router with bssid 'pinga'.
Attempted an rsync, and experienced symptoms in this bug.
Attaching partial /var/log/syslog. Seems like there are a lot of
rescans, not sure if this is
I am also experiencing this issue after upgrade to oneiric. Machine
is HP Elitebook 8540w. Wired ethernet (Intel Corporation 82577LM
Gigabit Network Connection) seems to perform fine. Wifi card is
Centrino Ultimate-N 6300. As reported by others it affects only 802.11N
connections... not G.
It's unclear that this is caused by network-manager yet, seeing as it's
device-specific (or at least system-specific, since I'm getting very
decent speeds here on a Dell system). Anyway, I'll take care of the
network-manager task if something needs to be done (I'll still try to
reproduce and debug
** Tags added: rls-mgr-o-tracking
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Title:
[Oneiric] Intel Corporation Centrino Ultimate-N 6300 poor networking,
packet
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New = Confirmed
** Changed in: linux (Ubuntu)
Importance: Undecided = High
** Changed in: network-manager (Ubuntu)
Importance: Undecided = High
** Also affects: linux
I've have the same problem on an x201, but only when I'm connected over
wireless-n, not b or g which work fine.
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Title:
** Changed in: linux (Ubuntu Oneiric)
Assignee: (unassigned) = Tim Gardner (timg-tpi)
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Title:
[Oneiric] Intel
bug 833479 might be a dupe? I also have an x201 and am seeing
intermittently very bad network performance, but there it's affecting
both wlan0 and the onboard e1000e.
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I'm Having a Dell XT2
previus ubuntu and other linux's no problem
oneiric ... very slow networking
very slow wifi and very slow ehternet
via wifi I have a download lower than 1k
via ethernet I can have a download of 2k
u2date oneiric of today (6sept)
Linux xt2 3.0.0-10-generic-pae #16-Ubuntu
Same problem than drussel here. I have a Thinkpad X201S.
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Title:
[Oneiric] Intel Corporation Centrino Ultimate-N 6300
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Title:
[Oneiric] Intel Corporation Centrino Ultimate-N 6300 poor networking,
packet loss and very slow Lenovo X201 and
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