Can't reconnect to Network devices after MBPro sleeps

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Can't reconnect to Network devices after MBPro sleeps

Howard E. Rosenman
I'm hoping someone has seen/solved this situation. I recently upgraded to a new 15" MacBook Pro shortly after upgrading to a current model 2TB Time Capsule. I did not have this problem with my previous MacBook or previous-generation Time Capsule (single band, 1 TB). I spoke to AppleCare about this, but of course I couldn't duplicate the problem while on the phone with them - the rep said he thought it was a "permissions problem" but I'm not sure he was on the right track.

The problem occurs when I sleep the MacBook Pro (by closing the cover, or by leaving it unattended until it goes to sleep). When I awaken it, I have full Internet access through my network, but cannot "see" the other devices on the network (the Time Capsule disk, my Airport Express, or my Apple TV). Because of this, my Time Machine backups get "delayed" and I cannot stream to the other devices. If I turn Wi-Fi off, and then on again on the MacBook Pro, the problem is fixed 99% of the time.

I have 93 lines of log entries from right before I put the system to sleep to right after I awoke and manually re-established the connection a couple hours later - I am hesitant to paste them into an email to the list, but will do so if someone thinks they'd be beneficial.

I have tried disk repair and permissions repair, and re-installation of Lion from the Recovery Partition. Early on, I also deleted network preferences file and re-setup the Wi-Fi settings on the machine. I also took out a couple of manual settings I had for the Time Capsule (forcing to certain channels) and made it all "Automatic," but the problem recurs almost every time I sleep the machine (except when on the phone with AppleCare, naturally).

Any thoughts would be greatly appreciated.

--
Howard E. Rosenman
Jacksonville, FL, USA



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Re: Can't reconnect to Network devices after MBPro sleeps

Kirk McElhearn

On Sep 27, 2011, at 10:10 PM, Howard E. Rosenman wrote:

> I'm hoping someone has seen/solved this situation. I recently upgraded to a new 15" MacBook Pro shortly after upgrading to a current model 2TB Time Capsule. I did not have this problem with my previous MacBook or previous-generation Time Capsule (single band, 1 TB). I spoke to AppleCare about this, but of course I couldn't duplicate the problem while on the phone with them - the rep said he thought it was a "permissions problem" but I'm not sure he was on the right track.
>
> The problem occurs when I sleep the MacBook Pro (by closing the cover, or by leaving it unattended until it goes to sleep). When I awaken it, I have full Internet access through my network, but cannot "see" the other devices on the network (the Time Capsule disk, my Airport Express, or my Apple TV). Because of this, my Time Machine backups get "delayed" and I cannot stream to the other devices. If I turn Wi-Fi off, and then on again on the MacBook Pro, the problem is fixed 99% of the time.
>
> I have 93 lines of log entries from right before I put the system to sleep to right after I awoke and manually re-established the connection a couple hours later - I am hesitant to paste them into an email to the list, but will do so if someone thinks they'd be beneficial.
>
> I have tried disk repair and permissions repair, and re-installation of Lion from the Recovery Partition. Early on, I also deleted network preferences file and re-setup the Wi-Fi settings on the machine. I also took out a couple of manual settings I had for the Time Capsule (forcing to certain channels) and made it all "Automatic," but the problem recurs almost every time I sleep the machine (except when on the phone with AppleCare, naturally).

It's a Lion problem with a lot of laptops. I've seen it on my iMac only a couple of times, but it happen often on my MacBook Air. I'v heard that it's fixed in the 10.7.2 update that should be out soon. It sure is an annoyance.

I turn off AirPort then turn it back on to fix it. This takes some time though; like 45 seconds for it to turn off.


Kirk

*Author of Take Control of iTunes 10: The FAQ*
http://www.mcelhearn.com/itunes
Twitter: http://www.twitter.com/mcelhearn

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Re: Can't reconnect to Network devices after MBPro sleeps

Richard Totaro
On Wed, Sep 28, 2011 at 06:23, Kirk McElhearn <[hidden email]> wrote:

>
> I turn off AirPort then turn it back on to fix it. This takes some time
> though; like 45 seconds for it to turn off.
>
>
I have this exact problem on my MacBook Pro 2010.

I use LaunchBar to fire off this applescript

-- Toggle Airport Power On and Off

--

*if* (*offset* of "On" in (*do shell script* "networksetup -getairportpower
en1")) > 0 *then*

*do shell script* "networksetup -setairportpower en1 off"

*else*

*do shell script* "networksetup -setairportpower en1 on"
*end* *if*



three key presses and I have solved the problem. Hopefully 10.7.2 resolves
this permanently, but I doubt it, because I used to see this in Snow Leopard
too.

Richard Totaro
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