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Prevent AirPort disconnects on sleep Network
I've found that whenever my machine goes to sleep, I lose my network connection. Unlike many other people, my machine automatically reconnects to the AirPort network, but the fact that I lose my connection is still a pain, especially if I'm connected to our company's Filemaker server. I found that MattMac posted the solution to this problem on the Apple Forums, which is simply to uncheck the "Sleep hard drive when possible" checkbox in the Energy Saver pane of the System Preferences panel.

I thought this might also be helpful for people whose machines don't reconnect to the network after sleep.

[robg adds: I haven't had any issues with losing servers I'm connected to when my PowerBook sleeps, but I also uncheck the hard drive sleep button on all my machines...]
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Prevent AirPort disconnects on sleep
Authored by: Tijer on Feb 23, '04 12:35:01PM

Wow!

This could be a really helping post for me this one,

I'll check it out right away...

/T



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Prevent AirPort disconnects on sleep
Authored by: Tijer on Feb 23, '04 12:40:07PM

It didn't work.

My iBook G4 still looses the airport connection whenever it goes to sleep.

Sadly.



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Prevent AirPort disconnects on sleep
Authored by: raggamuffin on Feb 23, '04 04:39:01PM

I had a problem with my PowerBook (Panther) disconnecting from my WLAN when I put it to sleep and not reconnecting, which was annoying because I had to type in the WEP key each time I turned it back on. I'd rather not leave the hard disk spinning all the time though, because of power consumption (when on battery) and potential damage when moving. Although it still disconnects (if I leave an IRC window open it eventually times out), I got it to automatically reconnect by a) installing the latest AirPort software, which fixed some WEP issues, and b) moving "AirPort" in the top of the list in the System Preferences --> Network --> Network Port Configurations box. The reconnect is virtually instantaneous so unless you leave a program (e.g. IRC, MSN, iChat?) connected during sleep it resumes seamlessly.



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Prevent AirPort disconnects on sleep
Authored by: slappinjoe on Feb 26, '04 10:35:17AM

my ibook g4 (using linksys wireless router) won't automatically reconnect to the wirelss LAN on waking from sleep. I did set the network configs like ragamuffin's note, but I still have to manually reattach to the wireless network after wake.

It's annoying. If a wired cxn automatically reactivates when waking, then shouldn't the wireless one as well?

--S



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Prevent AirPort disconnects on sleep
Authored by: slappinjoe on Apr 29, '04 09:02:22PM

If anyone's interested in this topic, I figured out how to have my g4 ibook automagically reattach to my wireless LAN. It was all about choosing 'Automatic' in the By default, join: for the Airport configuration in the Network applet.

Since at home my ibook sees several neighbors' WLANs, I thought I should select 'A specific network' there and choose my SSID. that was a mistake. I changed it to Automatic and boom, every time I open the lid, I'm right back on my home WLAN, no prob.

HTH someone,
--S



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Prevent AirPort disconnects on sleep
Authored by: mkcheme on Aug 16, '04 09:20:07PM

Yes! This is exactly the solution...I've been bashing my head into this since upgrading to Panther a couple of weeks ago. I too had it configured for a specific network because of neighboring WLANs, but automatic was the way to go :-) Thanks so much!!



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Prevent AirPort disconnects on sleep
Authored by: audiokid on Feb 23, '04 06:00:13PM

This is a REALLY misleading article. You put a computer to sleep, the network drops, period. If you're referring to helping a troublesome reconnect, then it should be worded that way. A Mac that is asleep, is asleep, and doesn't play with others while sleeping. (just like a person)

I've tried this on ethernet and airport, and it's just fully not true.

- Bill



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Prevent AirPort disconnects on sleep
Authored by: eno on Feb 23, '04 06:18:14PM

Yet another doozer of a "hint". This site is a great resource, but like the Internet as whole, for all the good stuff on there there's some crap as well.



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Prevent AirPort disconnects on sleep
Authored by: lazyatom on Feb 23, '04 06:56:02PM

I suspect there might be some confusion here, though I could be wrong. There are two different "sleep" modes here

1. hard disk sleeping - simply stops the disk from spinning to save battery/wear. Software continues processing, working in RAM.

2. machine sleeping - suspends all hardware/software activity and ~almost~ turns the machine off. Nothing runs, and the little white LED breathes (I love that, btw ;))

are you suggesting that when the hard drive stops spinning you lose the network connection (a valid problem)? or that the network connection doesn't come back when you reopen the lid of your machine (something probably to be expected)?

---

-- james



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Prevent AirPort disconnects on sleep
Authored by: raggamuffin on Feb 23, '04 08:28:29PM

I was rather wondering how the network connection was supposed to be maintained when the whole machine is sleeping (with the flashy LED). It seemed obvious to me that this would happen, but I can understand that people may be concerned about AirPort connections not auto-resuming after wake-up so that's what my post above is talking about. Quite why the hard disk should affect AirPort I don't understand.



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Prevent AirPort disconnects on sleep
Authored by: mivok on Feb 24, '04 06:33:25PM

I have noticed that after waking from sleep, some network connections are still active! Most notable are ssh connections on the terminal (I just continue typing where I left off).
The only way I can think this works is because I am behind a NAT connection, keep the same IP address between Airport reconnects, and the connection doesn't time out (The ADSL router keeps the conneciton open on my behalf). I could be wrong on the reasons though, all I know is its a really nice feature for when taking your computer into the next room or upstairs, just close it and move without losing network connecitons.



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Clarification
Authored by: jason mark on Feb 29, '04 09:54:11AM

Sorry about the confusion guys.

Apparently there are 3 "modes" of sleep (from what I can tell from the energy saver):

Computer Sleep
Display Sleep
Hard Drive Sleep

For some reason it appears that the Airport Connection is linked to the "Hard Drive Sleep" option, as opposed to the "Computer Sleep" option. In energy Saver, I tried moving my time up to a couple of hours, and I still ended up loosing my Airport connection after a very short period of time (< 20 minutes).

I had never even considered trying the "Hard Drive Sleep" option to try to hold onto my connection.

This was a hint I found on the Apple Discussion boards where someone else had a similar problem. Sorry if it wasn't as clear as could be, although I hope it's helpful to other people (like me) who have been frusterated by this problem.

I believe on non-wireless networks, machines can be "woken up" remotely, when they have network requests. Retrospect is a prime example of this as it can still back up a machine that was set to sleep. I've also connected remotely to machines that had been put to sleep, using Appletalk, and they start out a little slow, but you can still connect to them.



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