Comment 122 for bug 352228

I can confirm that for me, using TKIP causes the problem. Sadly, I had to switch back to TKIP from AES, since my router's performance with AES is abysmal.

On Jul 31, 2010 11:11, sl0n &lt;<email address hidden>&gt; wrote:

Looks like I've just encountered the bug for the first time. I have dell

latitude E4300 for about 3 months now and never experienced smth like

that.

I'm using D-Link DIR-635 at home and this morning I've changed wireless

settings: "Cipher Type" from "TKIP &amp; AES" to "TKIP" only. I believe this

action has triggered the bug. I read the thread and found some users

mentioned "TKIP/AES" problem, I changed it back to "TKIP &amp; AES" and it's

working ok for a about an hour now.

Details:

# uname -a

Linux dell 2.6.32-24-generic #38-Ubuntu SMP Mon Jul 5 09:22:14 UTC 2010 i686 GNU/Linux

# lsb_release -a

No LSB modules are available.

Distributor ID: Ubuntu

Description: Ubuntu 10.04.1 LTS

Release: 10.04

Codename: lucid

# lspci -v -s 0c:00.0

0c:00.0 Network controller: Intel Corporation Wireless WiFi Link 5100

 Subsystem: Intel Corporation Device 1321

 Flags: bus master, fast devsel, latency 0, IRQ 30

 Memory at f69fe000 (64-bit, non-prefetchable) [size=8K]

 Capabilities: [c8] Power Management version 3

 Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable+

 Capabilities: [e0] Express Endpoint, MSI 00

 Capabilities: [100] Advanced Error Reporting &lt;?&gt;

 Capabilities: [140] Device Serial Number 38-20-95-ff-ff-d6-24-00

 Kernel driver in use: iwlagn

 Kernel modules: iwlagn

# modinfo iwlagn

filename: /lib/modules/2.6.32-24-generic/kernel/drivers/net/wireless/iwlwifi/iwlagn.ko

alias: iwl4965

license: GPL

author: Copyright(c) 2003-2009 Intel Corporation &lt;<email address hidden>&gt;

version: 1.3.27k

description: Intel(R) Wireless WiFi Link AGN driver for Linux

firmware: iwlwifi-4965-2.ucode

firmware: iwlwifi-5150-2.ucode

firmware: iwlwifi-5000-2.ucode

firmware: iwlwifi-6050-4.ucode

firmware: iwlwifi-6000-4.ucode

...

--

Intel Wireless 5300 AGN: iwlagn: No space for Tx

https://bugs.launchpad.net/bugs/352228

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