Wifi connection behaving weirdly since major system upgrade...

Coume · 2009-07-19 09:46:41

Morning,

Not sure where to look or what to check to fix this one

I never ever had problem with my wifi connexion until "pacman -Syu" yesterday, which was btw a major one as I haven't done it regularly...

From time to time, my wifi connexion just hangs up/dies and I either needs to restart or to switch to a wired one.

Here is my dmesg output but I am not sure if it can help much

iwlagn 0000:01:00.0: firmware: requesting iwlwifi-5000-2.ucode
iwlagn 0000:01:00.0: loaded firmware version 8.24.2.12
Registered led device: iwl-phy0::radio
Registered led device: iwl-phy0::assoc
Registered led device: iwl-phy0::RX
Registered led device: iwl-phy0::TX
ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: authenticate with AP 02:24:2c:47:fe:a5
wlan0: authenticated
wlan0: associate with AP 02:24:2c:47:fe:a5
wlan0: RX AssocResp from 02:24:2c:47:fe:a5 (capab=0x401 status=0 aid=1)
wlan0: associated
ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
wlan0: disassociating by local choice (reason=3)
wlan0: no IPv6 routers present
wlan0: authenticate with AP 00:04:ed:1d:a8:2e
wlan0: authenticated
wlan0: associate with AP 00:04:ed:1d:a8:2e
wlan0: RX AssocResp from 00:04:ed:1d:a8:2e (capab=0x11 status=0 aid=1)
wlan0: associated
Intel AES-NI instructions are not detected.
iwlagn 0000:01:00.0: iwl_tx_agg_start on ra = 00:04:ed:1d:a8:2e tid = 0
iwlagn 0000:01:00.0: HW queue is empty

Any idea on what to check? If you require more information, just let me know what.

Thanks
Ludo

my0pic · 2009-07-19 10:50:00

Try disabling ipv6. In your /etc/modprobe.d/modprobe.conf put

alias net-pf off

Hope that helps.

Coume · 2009-07-19 11:02:10

Thanks a lot

I will try it for few days and see if it improves the situation

Coume · 2009-07-19 11:46:26

erm, it does not help

Still the weird behavior and I noticed that my connexion speed is switching from 1Mb/s to 60Mb/s very often and randomly... Is there a way to fix it at 54Mb/s?

I wonder if it is my Wifi N laptop and router that my be causing the problem

Thanks
Ludo

Anda · 2009-07-19 21:12:52

my0pic wrote:

Try disabling ipv6. In your /etc/modprobe.d/modprobe.conf put
alias net-pf off
Hope that helps.

http://wiki.archlinux.org/index.php/IPv … the_Module

According to the wiki it should say:

alias net-pf-10 off

Coume · 2009-07-26 18:50:28

ok, so after a week with ipv6 blacklisted and not loading thanks to the above line, I can still say that my wifi connexion is poor since moving to 2.6.30

My connexion is @ 60Mbps and then it drops to 1Mbps for a while and then back up... I basically need to use the eth connexion as I can't work reliably with the wifi anymore

Any idea on what cause this choppy connexion?

Thanks
Ludo

mjheagle8 · 2009-07-26 19:17:57

what is your wireless card/driver? i have a iwl4965 driver and am having issues with it. it worked perfectly on the live cd, and now i can see other networks but the ip times out with both dhclient and dhcpcd.

R00KIE · 2009-07-27 00:06:49

Coume wrote:

ok, so after a week with ipv6 blacklisted and not loading thanks to the above line, I can still say that my wifi connexion is poor since moving to 2.6.30
My connexion is @ 60Mbps and then it drops to 1Mbps for a while and then back up... I basically need to use the eth connexion as I can't work reliably with the wifi anymore
Any idea on what cause this choppy connexion?
Thanks
Ludo

Does it drop to 1Mbps when you are doing downloads or when it is idling?

Coume · 2009-07-27 05:36:52

R00KIE wrote:

Coume wrote:
ok, so after a week with ipv6 blacklisted and not loading thanks to the above line, I can still say that my wifi connexion is poor since moving to 2.6.30
My connexion is @ 60Mbps and then it drops to 1Mbps for a while and then back up... I basically need to use the eth connexion as I can't work reliably with the wifi anymore
Any idea on what cause this choppy connexion?
Thanks
Ludo
Does it drop to 1Mbps when you are doing downloads or when it is idling?

It happens randomly. I can be downloading (i.e. pacman -Syu) when it freezes for a while (download stops for few minutes and sometimes restart) or I can be on msn chatting with little traffic.
btw, when it drops to 1Mbps, it is like having no connexion at all. Because no Internet traffic is possible, not even very slowly

R00KIE · 2009-07-27 18:37:26

Ok, then it is not a question of connection speed dropping when the connection is idle.
Some drivers used to do that but it wouldn't affect normal network usage (connection speed would go up as soon as there was enough network activity), ath5k used to do this and it was not a bug but in your case it seems to be.

Have you checked to see if anyone is using the same wireless channel (even if they are using an hidden essid) or change the wireless channel you are using, if you can that is.
Also is anyone using bluetooth devices nearby? It shouldn't conflict because bluetooth should avoid the used wireless channels but who knows.

If you have the chance, try with another wireless n router and wireless g routers to try to determine if it is a problem with the drivers or hardware compatibility.

mini · 2009-08-06 07:11:45

I have got the same problem since moving to 2.6.30
I have a iwl4965 driver. I have tried to change the wireless channel, but it does not help

svanberg · 2009-08-06 11:01:15

R00KIE wrote:

Have you checked to see if anyone is using the same wireless channel (even if they are using an hidden essid) or change the wireless channel you are using, if you can that is.

I have the exact problem, but will try this after work.

mini · 2009-08-06 11:21:36

It is some bug here. Under windows I do not have any problems.

psycepa · 2009-09-27 19:02:16

Any progress with that?

Coume · 2009-09-27 19:10:58

still the same problem for me. No one on the same wifi channel, and several kernel upgrades later my wifi is still choppy so I am stuck on ETH for the time being

Did anyone find a solution?

svanberg · 2009-09-28 19:44:33

I still got this irritating problem. I can sit a meter away from self-wireless router and network on my netbook jumps up and down all the time.

Last edited by svanberg (2009-09-28 19:44:48)

Theomachos · 2009-10-06 14:26:37

Same here with ipw2200. *sigh*

Arch Linux

#1 2009-07-19 09:46:41

Wifi connection behaving weirdly since major system upgrade...

#2 2009-07-19 10:50:00

Re: Wifi connection behaving weirdly since major system upgrade...

#3 2009-07-19 11:02:10

Re: Wifi connection behaving weirdly since major system upgrade...

#4 2009-07-19 11:46:26

Re: Wifi connection behaving weirdly since major system upgrade...

#5 2009-07-19 21:12:52

Re: Wifi connection behaving weirdly since major system upgrade...

#6 2009-07-26 18:50:28

Re: Wifi connection behaving weirdly since major system upgrade...

#7 2009-07-26 19:17:57

Re: Wifi connection behaving weirdly since major system upgrade...

#8 2009-07-27 00:06:49

Re: Wifi connection behaving weirdly since major system upgrade...

#9 2009-07-27 05:36:52

Re: Wifi connection behaving weirdly since major system upgrade...

#10 2009-07-27 18:37:26

Re: Wifi connection behaving weirdly since major system upgrade...

#11 2009-08-06 07:11:45

Re: Wifi connection behaving weirdly since major system upgrade...

#12 2009-08-06 11:01:15

Re: Wifi connection behaving weirdly since major system upgrade...

#13 2009-08-06 11:21:36

Re: Wifi connection behaving weirdly since major system upgrade...

#14 2009-09-27 19:02:16

Re: Wifi connection behaving weirdly since major system upgrade...

#15 2009-09-27 19:10:58

Re: Wifi connection behaving weirdly since major system upgrade...

#16 2009-09-28 19:44:33

Re: Wifi connection behaving weirdly since major system upgrade...

#17 2009-10-06 14:26:37

Re: Wifi connection behaving weirdly since major system upgrade...

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