Wake Sleeping iMac connected via Wifi

I just got an Airport Express for use on my home network with my iMac.
My main motivations for purchasing this is to use the Apple Remote function on my iPhone to stream music from my iMac via Airplay.
This is working great except I cannot connect when when my iMac goes to sleep.
Under the Energy System Preferences I have "Wake for network access" checked.
However If my iMac goes to sleep for an extended period it will not wake - If I go and jiggle the mouse i notice that it does needs to reconnect to the Airport.
Is there a setting on the iMac or Airpot that I'm missing?
I thought I saw somewhere that you cannot wake a Mac when connected via Wifi - only via Ethernet.
If this is the case i can just run a wire, but I would prefer to use a wireless connection.
I realize i can just use Airplay directly from my iPhone however there are items on my iMac not on my IPhone
Also I need to wake my iMac for remote access.
Thanks
Jeff
Message was edited by: OrboJeff

Under the Energy System Preferences I have "Wake for network access" checked.
This setting only applies to Ethernet connections, and requires a network device to send it a magic packet.
(57041)

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Remotely waking a sleeping iMac (connected via wifi)

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You want to remotely wake your iMac up because you'd rather not leave it awake all the time?
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Or maybe I'm misunderstanding what you are wanting to do.

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Hi Geoff,
Hi, this has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
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System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x instructions...
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10.4 instructions...
Is that Interface dragged to the top of Network>Show:>Network Port Configurations.
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208.67.222.222
208.67.220.220
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Hi, this has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
old... http://docs.info.apple.com/article.html?artnum=106653
Hi, this has worked for a few...
Though all of these steps may or may not be needed, I'm including them all.
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
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208.67.222.222
208.67.220.220
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Click OK.
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Hi wolfgangfromhildesheim,
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Make sure your printer has power and is turned on. Try turning your printer off and then back on again to see if it resolves your issue.
Check to see if your printer has any error lights or indicators displayed on the printer's control panel. Check the documentation that came with your printer to clear any errors displayed.
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About AirPrint - Apple Support
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Anone connecting via wifi?

Greetings!
I've been having troubles downloading HD movie files with iTunes 9.0.2. An other content downloads fine after purchase. Problems come when trying to download any file larger than 2 gig or so.
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So wondering if anyone out there is downloading HD content via wifi and having any issues, or doing fine?
BTW, I use AppleTV to watch the content from the PC, a connection made via the wifi router without issue.
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Works fine for me. I'm using an 8-yr-old Linksys router on 802.11b, set to a channel that doesn't interfere so much with the neighbors.
If this is a new router, check to see if the manufacturer has any firmware updates.

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Thanks, very helpful.
Say it loud, this is one of the best things of Airport, you control the volume even with the optical output:
¿However, why I can´t do the same with the optical output of my 2008 Mac Mini?
Each one (Mac mini 2008 and Airport Express 2008) have optical link to both receivers (Denon AVR3805 and Denon AVR1905).
But I must control the volume of the mac mini with the remote of the AVR3805.
It seems Airplay makes some magic, but straight driver of OSX over audio device don´t.
What a PIA (Pain in the ***). They can put Gigabits of audio information in the optical link but they can´t add a layer adding a header of some bytes to the packets, adressed to a smart DAC than can control the analog output with two bytes of information.
IEEE, ¿Will you make a layer specification for smart DACs? Life and devices use would be much simpler.
Apple in the meantime makes the magic he is able with Airplay.
Some day.

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Wake Sleeping iMac connected via Wifi

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