[GTALUG] random wifi disconnects

[Tim Tisdall]

Wifi issues are a mysterious thing...  I usually find I twiddle with things
until I find that it's better.  Fortunately in Ubuntu it's rare that I've
had to do that.

One thing you could try, though it may do nothing, is set the CRDA to CA:

iw reg set CA

I'm not sure what CRDA does if it doesn't have a country to work with...  I
think it may use the most restrictive settings.


On 28 June 2015 at 11:15, Stewart C. Russell <scruss at gmail.com> wrote:

> Hi,
>
> Every few days I've started to get my notebook's network connection
> giving out. This is what the log tells me:
>
>  [Sat Jun 27 17:14:38 2015] wlan0: deauthenticated from
> 00:xx:xx:xx:xx:xx (Reason: 7=CLASS3_FRAME_FROM_NONASSOC_STA)
>  [Sat Jun 27 17:14:38 2015] cfg80211: Calling CRDA to update world
> regulatory domain
>  [Sat Jun 27 17:14:38 2015] wlan0: authenticate with 00:xx:xx:xx:xx:xx
>  [Sat Jun 27 17:14:38 2015] wlan0: send auth to 00:xx:xx:xx:xx:xx
>  [Sat Jun 27 17:14:38 2015] cfg80211: World regulatory domain updated:
>  [Sat Jun 27 17:14:38 2015] cfg80211:  DFS Master region: unset
>  [Sat Jun 27 17:14:38 2015] cfg80211:   (start_freq - end_freq @
> bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
>  [Sat Jun 27 17:14:38 2015] cfg80211:   (2402000 KHz - 2472000 KHz @
> 40000 KHz), (300 mBi, 2000 mBm), (N/A)
>  [Sat Jun 27 17:14:38 2015] cfg80211:   (2457000 KHz - … etc.
>
> Restarting network-manager often fixes it, but not always.
>
> This is on Ubuntu 15.04, x86_64. Network card is Intel Centrino
> Advanced-N 6235, which may well be part of the problem.
>
> I realize that there's more info I should add, but short of dumping all
> of /etc on you, I don't know what else would be useful.
>
> cheers,
>  Stewart
>
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