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Groups > comp.sys.laptops > #276

Re: lost wireless connectivity - please help

From "Adam" <adam@no_thanks.com>
Newsgroups alt.os.linux.ubuntu, comp.sys.laptops
Subject Re: lost wireless connectivity - please help
Date 2011-06-15 09:12 -0700
Organization A noiseless patient Spider
Message-ID <italor$7ev$1@dont-email.me> (permalink)
References <it7skb$eik$1@dont-email.me> <oyLJp.53341$5f.31232@newsfe19.iad><it8cj0$u3v$1@dont-email.me> <xG4Kp.8785$F25.3774@newsfe04.iad>

Cross-posted to 2 groups.

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"Roy Strachan" <rd@bj.com> wrote in message
news:xG4Kp.8785$F25.3774@newsfe04.iad...
> On Tue, 14 Jun 2011 12:22:33 -0700, Adam wrote:
>
> > "Roy" <rd@bj.com> wrote in message
> > news:oyLJp.53341$5f.31232@newsfe19.iad...
> >> On Tue, 14 Jun 2011 07:53:11 -0700, Adam wrote:
> >>
> >> > Host OS:    Ubuntu 10.04 LTS
> >> > Guest OS:    Windows XP Pro SP3 (via VirtualBox) Base Memory:    4096
> >> > MB Video Memory:    256 MB
> >> > System:    ASUS N61JQ (laptop)
> >> > RAM:    8 GB
> >> > Graphics:    ATI Radeon Mobility 5730 (1 GB DDR3 VRAM)
> >> >
> >> >
> >> > I don't know how but I've lost wireless connectivity within the last
> >> > week or so. It was working last Monday evening but not last night.  I
> >> > use wireless for class.
> >> > I ran Update Manager yesterday.  Could that be the reason?
> >>
> >> Right click the networking icon. make sure enable wireless is checked,
> >> un-check enable networking, recheck enable networking.  That usually
> >> does it for me, though occasionally only a reboot will work, and
> >> sometimes a second reboot, but that is rare.  There seems to be an
> >> occasional quirk in wireless connection.
> >
> > Thanks, but right-clicking the networking icon shows ...
> >     1)    Enable Networking is checked and 2)    Enable Wireless is
> >     grayed out & not checked
> >
> > And, I can't click to check Enable Wireless since it is grayed out.
> >
> > But, your post hinted me to search for ... "ubuntu lucid how to enable
> > wireless \"wireless is disabled\"" which led me to the following link
> > ...
> > http://askubuntu.com/questions/9816/wireless-shows-up-as-disabled-how-
> can-i-get-
> > it-working
> > where I found ...
> > ================================================================== It is
> > likely that the network-manager state got corrupted. Open the file
> > /var/lib/NetworkManager/NetworkManager.state. It should look something
> > like this:
> >
> > [main]
> > NetworkingEnabled=true
> > WirelessEnabled=true
> > WWANEnabled=true
> >
> > Change any from 'false' to 'true' to re-enable networking. It may work
> > better if you first stop NetworkManager:
> >
> > sudo stop network-manager
> >
> > And start it again once done. Or reboot
> >
> > This happened occasionally after wakeup in Lucid. In Maverick this
> > should be fixed.
> > ==================================================================
> >
> > My "/var/lib/NetworkManager/NetworkManager.state" [Read-Only] file
> > contains the same settings except ...
> >
> > WirelessEnabled=false
> >
> > In there another way to change this setting?
>
> /var is a system directory, so it is owned by root and you don't have
> write permission.  To gain access use -
> sudo gedit /var/lib/NetworkManager/NetworkManager.state
>

Okay, thanks!


>
> >
> > Also, I recently found out about Ctrl+Alt+Backspace and started using it
> > just before shutdown to prevent system freeze. Could using
> > Ctrl+Alt+Backspace cause the network-manager state to be corrupted?
> > Trying to find out what is disabling wireless to prevent it from
> > happening again.
>
> I'm not sure, I've never used it.  However after you have restored
> NetworkManager.state you can try it and see for yourself.  Just make sure
> that you do not have any unsaved data when you do since this will restart
> X and consequently any open programs, which means any unsaved data will
> be lost.  From "This happened occasionally after wakeup in Lucid" in your
> quoted website, I would *guess* Ctrl+Alt+Backspace is not the problem.

Yes, glad to know that Ctrl+Alt+Backspace is not the problem.

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Thread

lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-14 07:53 -0700
  Re: lost wireless connectivity - please help Roy <rd@bj.com> - 2011-06-14 15:58 +0000
    Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-14 12:22 -0700
      Re: lost wireless connectivity - please help Roy Strachan <rd@bj.com> - 2011-06-15 16:00 +0000
        Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-15 09:12 -0700
  Re: lost wireless connectivity - please help Tazz <dmswaine@gmail.com> - 2011-06-14 15:19 -0300
    Re: lost wireless connectivity - please help BillW50 <BillW50@aol.kom> - 2011-06-14 13:28 -0500
    Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-14 13:40 -0700
      Re: lost wireless connectivity - please help *Hemidactylus* <ecphoric@hotmail.com> - 2011-06-14 21:51 -0400
        Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-14 20:23 -0700
          Re: lost wireless connectivity - please help Wolf K <wekirch@sympatico.ca> - 2011-06-15 08:40 -0400
            Re: lost wireless connectivity - please help *Hemidactylus* <ecphoric@hotmail.com> - 2011-06-15 09:58 -0400
            Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-15 09:39 -0700
          Re: lost wireless connectivity - please help Mark Lloyd <mlloyd@notroachstupid.usant.invalid> - 2011-06-15 10:41 -0500
            Re: lost wireless connectivity - please help "BillW50" <BillW50@aol.kom> - 2011-06-15 11:28 -0500
              Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-15 10:07 -0700
                Re: lost wireless connectivity - please help "BillW50" <BillW50@aol.kom> - 2011-06-15 14:56 -0500
                Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-15 14:11 -0700
            Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-15 09:48 -0700
            Re: lost wireless connectivity - please help Simon Jones <simon@iinet.net.au> - 2011-06-16 01:55 -0500
              Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-16 09:15 -0700
                Re: lost wireless connectivity - please help Simon Jones <simon@iinet.net.au> - 2011-06-17 01:57 -0500
              Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-16 12:02 -0700
                Re: lost wireless connectivity - please help Simon Jones <simon@iinet.net.au> - 2011-06-17 02:00 -0500
                Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-20 13:51 -0700
                Re: lost wireless connectivity - please help Andy <nospam@> - 2011-06-21 08:25 +1000
                Re: lost wireless connectivity - please help Simon Jones <simon@iinet.net.au> - 2011-06-21 01:13 -0500
                Re: lost wireless connectivity - please help Andy <nospam@> - 2011-06-21 17:35 +1000
                Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-21 10:39 -0700
                Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-21 11:55 -0700
                Re: lost wireless connectivity - please help "Dirk T. Verbeek" <dverbeek@xs4all.nl> - 2011-06-22 20:19 +0200
                Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-22 11:35 -0700
                Re: lost wireless connectivity - please help Simon Jones <simon@iinet.net.au> - 2011-06-22 01:07 -0500
                Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-22 00:22 -0700
                Re: lost wireless connectivity - please help Simon Jones <simon@iinet.net.au> - 2011-06-22 04:30 -0500
                Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-22 10:16 -0700
        Re: lost wireless connectivity - please help Mark Lloyd <mlloyd@notroachstupid.usant.invalid> - 2011-06-15 10:38 -0500
  Re: lost wireless connectivity - please help "RnR" <rnrtexas@gmail.com> - 2011-06-20 05:11 -0500
    Re: lost wireless connectivity - please help "Adam" <adam@no_thanks.com> - 2011-06-20 08:30 -0700
      Re: lost wireless connectivity - please help "RnR" <rnrtexas@gmail.com> - 2011-06-20 12:18 -0500
        Re: lost wireless connectivity - please help "RnR" <rnrtexas@gmail.com> - 2011-06-20 12:22 -0500
          Re: lost wireless connectivity - please help Simon Jones <simon@iinet.net.au> - 2011-06-21 01:12 -0500

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