iwlagn won't do wireless N

[abeowitz]

Yes, it's a feature and not a bug:

"802.11n support for the iwlagn driver has been temporarily disabled. Intel is actively working to get this properly fixed up in the firmware. This workaround should be reverted once updated firmware is available."

Or visit this link: https://bugs.launchpad.net/ubuntu/ma...re/+bug/630748

Actually, I had this problem with my other laptop using an Intel 5350. The connection would go bad every 30 min or so. Reloading the module worked. Happened at work where we have N AP's, but not at home where I had only a G at the time.

N seems stable on this Intel 1000 right now...

[Gausian]

This solved my problem. Thank you!

[ABCC]

I've noted a few significant network slowdowns when watching video files over nfs. On files with low bitrates (avi) there was some choppiness, high bitrate mkv's became unwatchable due to the many dropped frames. After reverting the work around and reconnecting with G all stutter cleared up.

Although the fix may be for an Intel 5300 the bug seems to hit 5100s too.

[abeowitz]

I've noted a few significant network slowdowns when watching video files over nfs. On files with low bitrates (avi) there was some choppiness, high bitrate mkv's became unwatchable due to the many dropped frames. After reverting the work around and reconnecting with G all stutter cleared up.

Although the fix may be for an Intel 5300 the bug seems to hit 5100s too.

Well, hopefully Intel will come up with a firmware solution soon. It's not Ubuntu's fault. I had trouble with that 5350 in Gentoo Linux.

If I learn more, or Intel updates, I'll update this thread.

[agrisv]

[QUOTE=abeowitz;9953554]GOT IT!!!!

The iwlagn module might have 'n' disabled by accident...

rmmod iwlagn

modprobe iwlagn 11n_disable=0

thanks it worked for mee too--- Detected Intel(R) Wireless WiFi Link 4965AGN
ubutnu 10.10

[magnetpest2k7]

Hello my laptop is TOSHIBA L505D and even I am not able to connect to the wireless N network

when I run

lspci

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8187SE Wireless LAN Controller (rev 22)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)

I find realtek to be my wireless driver can any one tell me how to go about fixing this problem for my driver?

I get the following message when I run

rmmod iwlagn
ERROR: Module iwlagn does not exist in /proc/modules

Thanks
Vin

[peepingtom]

iwlagn is a driver for intel wireless chipsets. Since you have a realtek wifi chipset rather than an intel one, you should start a new thread or ask for help on IRC via #ubuntu on irc.freenode.net

[sritacco]

this works... sort of

The bad news is on Intel 5100 AGN any N connections are unstable and eventually
lock up.

This was fixed in recent releases of 10.04 but is broken again in 10.10

[makaros]

High!After deleting intel-5300-iwlagn-disable11n.conf i'm experiencing some problems.Is there any way to restore it?

[ABCC]

Sure, just create a new one with the following contents:

options iwlagn 11n_disable=1

To reenable it you'll also need to reload the driver:

sudo modprobe -r iwlagn
sudo modprobe iwlagn

Although you can use any name you like for the file it's best to use the same one. That way whenever the fix is commited apt should be able to remove it for you.