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No WiFi on Wake-up in Mavericks

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  No WiFi on Wake-up in Mavericks Earl Grey <earl@t.net> - 2014-03-09 11:07 -0400
    Re: No WiFi on Wake-up in Mavericks Warren Oates <warren.oates@gmail.com> - 2014-03-09 11:18 -0400
      Re: No WiFi on Wake-up in Mavericks BakersT <nomailpls@domain.invalid> - 2014-03-09 11:52 -0400
        Re: No WiFi on Wake-up in Mavericks Warren Oates <warren.oates@gmail.com> - 2014-03-09 13:06 -0400
        Re: No WiFi on Wake-up in Mavericks Lewis <g.kreme@gmail.com.dontsendmecopies> - 2014-03-09 23:28 +0000
    Re: No WiFi on Wake-up in Mavericks Alan Browne <alan.browne@FreelunchVideotron.ca> - 2014-03-09 11:55 -0400
    Re: No WiFi on Wake-up in Mavericks Ted Lee <tmplee@gmail.com> - 2014-03-09 12:23 -0500
      Re: No WiFi on Wake-up in Mavericks "M. John Matlaw" <nouser@invalid.com> - 2014-03-10 14:38 -0400
        Re: No WiFi on Wake-up in Mavericks Ted Lee <tmplee@gmail.com> - 2014-03-10 14:32 -0500
          Re: No WiFi on Wake-up in Mavericks "M. John Matlaw" <nouser@invalid.com> - 2014-03-11 14:49 -0400
    Re: No WiFi on Wake-up in Mavericks Earl Grey <earl@t.net> - 2014-03-11 08:41 -0400
      Re: No WiFi on Wake-up in Mavericks Ted Lee <tmplee@gmail.com> - 2014-03-11 09:54 -0500
        Re: No WiFi on Wake-up in Mavericks Earl Grey <earl@t.net> - 2014-03-11 11:45 -0400
          Re: No WiFi on Wake-up in Mavericks Warren Oates <warren.oates@gmail.com> - 2014-03-11 14:15 -0400
          Re: No WiFi on Wake-up in Mavericks John White <jccw@comcast.net> - 2014-03-11 14:31 -0400
            Re: No WiFi on Wake-up in Mavericks Earl Grey <earl@t.net> - 2014-03-11 15:26 -0400
              Re: No WiFi on Wake-up in Mavericks Jolly Roger <jollyroger@pobox.com> - 2014-03-11 19:53 +0000
              Re: No WiFi on Wake-up in Mavericks John White <jccw@comcast.net> - 2014-03-11 16:54 -0400
                Re: No WiFi on Wake-up in Mavericks Earl Grey <earl@t.net> - 2014-03-12 09:50 -0400
                  Re: No WiFi on Wake-up in Mavericks John White <jccw@comcast.net> - 2014-03-12 11:27 -0400
                    Re: No WiFi on Wake-up in Mavericks Earl Grey <earl@t.net> - 2014-03-12 16:18 -0400
              Re: No WiFi on Wake-up in Mavericks Warren Oates <warren.oates@gmail.com> - 2014-03-12 10:38 -0400
                Re: No WiFi on Wake-up in Mavericks Ted Lee <tmplee@gmail.com> - 2014-03-12 09:55 -0500
                  Re: No WiFi on Wake-up in Mavericks Warren Oates <warren.oates@gmail.com> - 2014-03-12 11:28 -0400
    Re: No WiFi on Wake-up in Mavericks Oregonian Haruspex <bob_davis_retired@yahoo.com> - 2014-03-12 15:00 -0700

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#57913

On 3/12/14, 11:27 AM, John White wrote:
> In article <lfpoo4$7nb$1@news.albasani.net>, Earl Grey <earl@t.net>
> wrote:
>
>> On 3/11/14, 4:54 PM, John White wrote:
>>> In article <lfno0b$gra$1@news.albasani.net>, Earl Grey <earl@t.net>
>>> wrote:
>>>
>>>> On 3/11/14, 2:31 PM, John White wrote:
>>>>
>>>>> Sounds like a marginal wifi connection. Have you tried working on that?
>>>>> http://support.apple.com/kb/HT1365?viewlocale=en_US
>>>>>
>>>>
>>>> It wasn't marginal before I installed Mavericks;-)
>>>>
>>>> It'd been a rock solid connection to my iMac for three years-- and still
>>>> is to other devices elsewhere in the house.
>>>
>>> The question is, do you want to fix the problem, or just complain about
>>> it? If the former is the case, try running Wireless Diagnostics (see
>>> http://support.apple.com/kb/HT5606) and see if it tells you anything. I
>>> don't doubt that Mavericks brought the problem on, but you might as well
>>> see if you can fix it rather than waiting hopefully for a software
>>> update.
>>>
>>
>> Thanks for the tip. It said all was OK.
>
> One more stab. Try running iStumbler (it's free, donationware). It will
> show you signal to noise ratios, possible competing signals, etc. There
> might be a clue there. Incidentally, it shows me that there are 15
> different wifi signals being received by my computer, many of which are
> quite good enough to use, and that some of them are open. Why am I
> paying for internet access?
>

I ran it-- and s/n is 48% to 14%. Not sure what that means.

I was on channel 6 as were most of the other nearby networks-- so I 
moved to channel 9 which was unused with adjacent channels only lightly 
used. We shall see...

Thanks again!

-- 
Predicting is tough. Especially about the future.
               --Yogi Berra

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#57909

In article <lfno0b$gra$1@news.albasani.net>, Earl Grey <earl@t.net> 
wrote:

> It wasn't marginal before I installed Mavericks;-)
> 
> It'd been a rock solid connection to my iMac for three years-- and still 
> is to other devices elsewhere in the house.

... and my connection is anything but "marginal." I know how to set up a 
WLAN.
-- 
Where's the Vangelis music?
Pris' tongue is sticking out in in the wide shot after Batty has kissed her.
They have put back more tits into the Zhora dressing  room scene.
  -- notes for Blade Runner

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#57910

On 3/12/14, 9:38 AM, Warren Oates wrote:
> In article <lfno0b$gra$1@news.albasani.net>, Earl Grey <earl@t.net> wrote:
>
>> It wasn't marginal before I installed Mavericks;-)
>>
>> It'd been a rock solid connection to my iMac for three years-- and
>> still is to other devices elsewhere in the house.
>
> ... and my connection is anything but "marginal." I know how to set up a
> WLAN.

I've found that the problem is not easily reproducible.  If BlueTooth is 
on, sometimes the problem is there, sometimes not.  The only consistency 
is that if BlueTooth is off, no problem.  I have noticed that even 
during normal operation there is a lot of variability in what speed the 
wifi n runs at -- the negotiated transmit rate varies all over the map 
during a connection, although unless BT is on it never drops below, say, 
50 mbps (usually it's running 104-120.) Since none of the wifi 
transmitters in the neighborhood are close enough to cause any real 
interference, I assume the variability is a result of other 
environmental factors.

-- 
Ted

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#57912

In article <lfpsgp$ujh$1@dont-email.me>, Ted Lee <tmplee@gmail.com> 
wrote:

> On 3/12/14, 9:38 AM, Warren Oates wrote:
> > In article <lfno0b$gra$1@news.albasani.net>, Earl Grey <earl@t.net> wrote:
> >
> >> It wasn't marginal before I installed Mavericks;-)
> >>
> >> It'd been a rock solid connection to my iMac for three years-- and
> >> still is to other devices elsewhere in the house.
> >
> > ... and my connection is anything but "marginal." I know how to set up a
> > WLAN.
> 
> I've found that the problem is not easily reproducible.  If BlueTooth is 
> on, sometimes the problem is there, sometimes not.  The only consistency 
> is that if BlueTooth is off, no problem.  I have noticed that even 
> during normal operation there is a lot of variability in what speed the 
> wifi n runs at -- the negotiated transmit rate varies all over the map 
> during a connection, although unless BT is on it never drops below, say, 
> 50 mbps (usually it's running 104-120.) Since none of the wifi 
> transmitters in the neighborhood are close enough to cause any real 
> interference, I assume the variability is a result of other 
> environmental factors.

Also, if I take my Linux laptop (Dell D630, Arch) into the same room, 
and put it to sleep, it never has any problems waking up to a wifi 
connection and a good cup of coffee.
-- 
Where's the Vangelis music?
Pris' tongue is sticking out in in the wide shot after Batty has kissed her.
They have put back more tits into the Zhora dressing  room scene.
  -- notes for Blade Runner

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#57917

On 2014-03-09 15:07:10 +0000, Earl Grey said:

> So my late 2012 iMac was rocking along just fine until I upgraded to Mavericks.
> 
> Now, about half the times when it comes out of sleep mode, it doesn't 
> find and connect to my WiFi. I either have to find my SSID in the 
> networks list or manually turn WiFi off, then on again in system prefs 
> and it connects.
> 
> And yes, I've got the "Remember Networks Joined" box checked and have 
> tried both checked and unchecked for the "Ask to Join New Networks" 
> box. I've also tried broadcasting and not broadcasting SSID in router 
> setup. No difference on any combination of these options.

My wife's Macbook (last model) has this issue too, but it resolves 
itself in a few seconds after waking up.  I figure that the wireless 
radio / chipset wakes after the processor and takes a little bit of 
time to get going.  This issue also seemed to crop up in Mavericks.

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