Network controller: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) (rev 01)

posted by Jordan Peterson on Fri, 07/10/2009 - 19:19

I'm still getting an intermittent lag of throughput on my Atheros based Wireless Controller.

lspci | grep Ath

Network controller: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) (rev 01)

My ath9k module seemed to be working until I noticed dropouts in sound when using a networked pulseaudio session (play sound through local lan onto remote machine hooked to stereo system).

While sending sound out, I opened a terminal and issued a command to ping a local machine on the network (but not the machine receiving the pulseaudio signal), and it seemed that the ping duration went up to 500+ ms from 1 or 2 ms nominal during a sound dropout. Additionally, I noticed that running iwconfig wlan0 showed a rate drop which I am sure is the ath9k driver dropping packets on a rate change.

I had doubts that pulseaudio was burping, so I hooked directly with a wire and sound ran perfect without dropouts.

Anyone else having these problems?

Jordan

 

Comments

On Thu, 11/12/2009 - 12:06

Surely! It's a somehow known bug in ubuntu.

I have an eee1005ha, which comes with an B/G/N atheros.

Pulseaudio Network would even crash under karmic until I installed backported wireless modules. Then, only those nasty drops. Later I learned that disabling IPV6 (blacklisting it under /etc/modprobe.d/blacklist) would help, so I did and now the skips are *almost* un-noticeable. But the ultimate solution will be switching the card. I just bought an Intel one, hope it helps somehow...

By ROLA

On Tue, 12/29/2009 - 14:30

Like you, I had to disable IPv6 to get networking to function properly in Ubuntu Karmic 9.10. What's really strange, is that by the 3rd time I installed Ubuntu Karmic 9.10 from the CD, the IPv6 problems vanished without disabling anything IPv6. This is of course a different machine than the 5810TZ as originally posted.

http://www.jordanpeterson.me/node/201

By Jordan Peterson

On Thu, 01/14/2010 - 21:26

 

Did you ever get a final solution?  I recently bought a HP dm3-1039wm with this card in it and I am having connection problems no matter where I connect.  The wireless card will connect and then disconnect.  I then can not re-connect no matter the location or signal strength.  When I reboot and down load the DL speeds bounce from very high to nothing and then back over anf over.  Needless to say I am very frustrated with my Ubuntu experience.  I am not going to give up just yet though.  Let me know please.

Patrick

By bluefoxox

On Thu, 01/14/2010 - 21:36

Hey Patrick,

Sorry I can't be much help to you at this point, because I sold the laptop with this wireless card in it. I had too many problems to dive into.

Have you tried to disable IPv6 yet?

Jordan

By Jordan Peterson

On Thu, 01/21/2010 - 14:22

Hey Jordan,

I am not exactly sure how to disable ipv6 yet. Could you lend a hand?

Patrick

By Anonymous (not verified)

On Thu, 01/21/2010 - 18:28

Patrick,

You're running Ubuntu? If so, which version?

Jordan

By Jordan Peterson

On Sun, 01/17/2010 - 10:06

Hey guys, I'm sorry the spam filters were set to high on node age and the system thought your posts were spam. I've been getting tons of spam. It should work now.

Thanks

Jordan

By Jordan Peterson