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 asked by Joseph Salisbury in
comment #58.
There's already been some amount of testing with the mainline kernel
with good success (e.g. the connection is stable even when N isn't
disabled). Reported bit rate by the driver is obviously not something
that should be taken at face value since it changes constantly and is
probably not all that accurate.
Finally, since there has been testing with good results with a newer
kernel, and similar good results on Fedora (which also uses
NetworkManager), I think there is sufficient proof that this isn't an
issue in NM; so I'll close the NM task as Invalid.
@oledoe: please file a separate bug report for your issue. This bug
report is specifically for Intel devices; as opposed to the Broadcom
device you are using. You can use the "ubuntu-bug linux" command to help
with filing a new bug report.
** Changed in: network-manager (Ubuntu Oneiric)
Status: Confirmed => Invalid
** Changed in: network-manager (Ubuntu Precise)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/836250
Title:
[Oneiric] Intel Corporation Centrino Ultimate-N 6300 poor networking,
packet loss and very slow Lenovo X201 and T500 laptops
Status in “linux” package in Ubuntu:
Triaged
Status in “network-manager” package in Ubuntu:
Invalid
Status in “linux” source package in Oneiric:
Triaged
Status in “network-manager” source package in Oneiric:
Invalid
Status in “linux” source package in Precise:
Triaged
Status in “network-manager” source package in Precise:
Invalid
Bug description:
This may be either network-manager or kernel, depending on triage...
I have verified this on both a Lenovo X201 and a Lenovo T500 laptop.
Both work perfectly with fully updated 10.10 and 11.04 versions of
Ubuntu.
However, booting into a fully updated 11.10 (as of 28/08/11) I get
very poor wireless networking performance. Between 6-10% packet loss,
very very slow connection and transfer rate. All in all, practically
unusable.
I have reported the bug on the X201 laptop, I will add the similar
logs from the T500 also if required.
As soon as I swap back to either 10.10 or 11.04 I get perfect
wireless, it's only on 11.10 that I get problems, this would suggest
it's not hardware or configuration on my side.
I have had this since first installing 11.10 which was a little after
Alpha 2.
Wired connection is fine.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: network-manager 0.9.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3
Uname: Linux 3.0.0-9-generic x86_64
Architecture: amd64
CRDA: Error: [Errno 2] No such file or directory
Date: Sun Aug 28 21:26:05 2011
EcryptfsInUse: Yes
Gconf:
IfupdownConfig:
auto lo
iface lo inet loopback
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110803.1)
IpRoute:
default via 192.168.100.1 dev eth0 proto static
192.168.100.0/24 dev eth0 proto kernel scope link src 192.168.100.41
Keyfiles: Error: [Errno 2] No such file or directory
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
ProcEnviron:
LANGUAGE=en_GB:en
PATH=(custom, user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
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