Re: Intel Centrino Wireless-N 2230 (rev c4) bug

[Paolo Zaffino <p.zaffino@unicz.it>]

Dear all,
thanks to your advices I solved all my problems.
I had more of one service that tried to manage the wifi, it wasn't a bug 
in the driver.
I solved with:

systemctl disable NetworkManager-wait-online.service
systemctl disable net-auto-wired.service
systemctl disable net-auto-wireless.service

Thanks for your advices and for your work on the Linux kernel.

Best regards.
Paolo Zaffino








On 27/04/2013 15:18, Paolo Zaffino wrote:
> Dear Developers,
> my name is Paolo Zaffino and I'm an Italian GNU/Linux user.
> I have an asus NV56 with an Intel Corporation Centrino Wireless-N 2230 
> (rev c4) wifi card.
> I installed Arch Linux at 64 bit, my kernel version is the 3.8.7-1 and 
> I use Gnome with Network Manager.
> I am facing a strange bug in the wifi driver.
> I am able to get a working connection to many wifi networks (open and 
> wpa), but in other cases I can not connect to them or I connect but 
> every 30 seconds (more o less) the connection drops.
> In this last case dmesg return this:
>
> [   25.459573] iwlwifi 0000:03:00.0: RF_KILL bit toggled to enable radio.
> [   25.460892] iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S
> [   25.468385] iwlwifi 0000:03:00.0: Radio type=0x2-0x0-0x0
> [   25.846472] iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S
> [   25.853963] iwlwifi 0000:03:00.0: Radio type=0x2-0x0-0x0
> [   26.065675] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
> [   27.186073] wlp3s0: authenticate with 74:ea:3a:cd:28:42
> [   27.202371] wlp3s0: send auth to 74:ea:3a:cd:28:42 (try 1/3)
> [   27.229754] wlp3s0: authenticated
> [   27.229912] iwlwifi 0000:03:00.0 wlp3s0: disabling HT/VHT due to 
> WEP/TKIP use
> [   27.229915] iwlwifi 0000:03:00.0 wlp3s0: disabling HT as WMM/QoS is 
> not supported by the AP
> [   27.229916] iwlwifi 0000:03:00.0 wlp3s0: disabling VHT as WMM/QoS 
> is not supported by the AP
> [   27.232552] wlp3s0: associate with 74:ea:3a:cd:28:42 (try 1/3)
> [   27.235911] wlp3s0: RX AssocResp from 74:ea:3a:cd:28:42 
> (capab=0x431 status=0 aid=8)
> [   27.237835] wlp3s0: associated
> [   27.237875] IPv6: ADDRCONF(NETDEV_CHANGE): wlp3s0: link becomes ready
> [ 1756.822019] wlp3s0: deauthenticating from 74:ea:3a:cd:28:42 by 
> local choice (reason=3)
> [ 1756.828531] cfg80211: Calling CRDA to update world regulatory domain
> [ 1757.303801] wlp3s0: authenticate with 74:ea:3a:cd:29:13
> [ 1757.308566] wlp3s0: send auth to 74:ea:3a:cd:29:13 (try 1/3)
> [ 1757.310340] wlp3s0: authenticated
> [ 1757.310586] iwlwifi 0000:03:00.0 wlp3s0: disabling HT as WMM/QoS is 
> not supported by the AP
> [ 1757.310592] iwlwifi 0000:03:00.0 wlp3s0: disabling VHT as WMM/QoS 
> is not supported by the AP
> [ 1757.310598] wlp3s0: waiting for beacon from 74:ea:3a:cd:29:13
> [ 1757.385290] wlp3s0: associate with 74:ea:3a:cd:29:13 (try 1/3)
> [ 1757.387810] wlp3s0: RX AssocResp from 74:ea:3a:cd:29:13 
> (capab=0x431 status=0 aid=13)
> [ 1757.389812] wlp3s0: associated
> [ 1757.793015] wlp3s0: deauthenticating from 74:ea:3a:cd:29:13 by 
> local choice (reason=3)
> [ 1757.806386] cfg80211: Calling CRDA to update world regulatory domain
> [ 1758.222639] wlp3s0: authenticate with 74:ea:3a:cd:29:13
> [ 1758.225663] wlp3s0: send auth to 74:ea:3a:cd:29:13 (try 1/3)
> [ 1758.228142] wlp3s0: authenticated
> [ 1758.228424] iwlwifi 0000:03:00.0 wlp3s0: disabling HT as WMM/QoS is 
> not supported by the AP
> [ 1758.228436] iwlwifi 0000:03:00.0 wlp3s0: disabling VHT as WMM/QoS 
> is not supported by the AP
> [ 1758.230701] wlp3s0: associate with 74:ea:3a:cd:29:13 (try 1/3)
> [ 1758.233728] wlp3s0: RX AssocResp from 74:ea:3a:cd:29:13 
> (capab=0x431 status=0 aid=13)
> [ 1758.236525] wlp3s0: associated
> [ 1758.761549] wlp3s0: deauthenticating from 74:ea:3a:cd:29:13 by 
> local choice (reason=3)
> [ 1758.771562] cfg80211: Calling CRDA to update world regulatory domain
> [ 1759.206738] wlp3s0: authenticate with 74:ea:3a:cd:28:42
> [ 1759.211055] wlp3s0: send auth to 74:ea:3a:cd:28:42 (try 1/3)
> [ 1759.213441] wlp3s0: authenticated
> [ 1759.213538] iwlwifi 0000:03:00.0 wlp3s0: disabling HT/VHT due to 
> WEP/TKIP use
> [ 1759.213540] iwlwifi 0000:03:00.0 wlp3s0: disabling HT as WMM/QoS is 
> not supported by the AP
> [ 1759.213541] iwlwifi 0000:03:00.0 wlp3s0: disabling VHT as WMM/QoS 
> is not supported by the AP
> [ 1759.215855] wlp3s0: associate with 74:ea:3a:cd:28:42 (try 1/3)
> [ 1759.218253] wlp3s0: RX AssocResp from 74:ea:3a:cd:28:42 
> (capab=0x431 status=0 aid=2)
> [ 1759.220225] wlp3s0: associated
>
>
> I'm here for further infomations about hardware or configurations.
> Unfortunately this is a nasty problem for me and for a plenty of other 
> users that are in the same situation.
> Thank you very much for your great work!
>
> Regards.
> Paolo Zaffino
>


-- 
Paolo Zaffino
Ph.D. Student - Biomedical and Computer Engineering
Dept. of Experimental and Clinical Medicine
"Magna Graecia" University of Catanzaro
viale Europa, 88100 Catanzaro - Italy