MacPro Wake on Lan (WOL) No Longer Working - Lion

Yup, mid 2007 iMac no longer wakes after upgrade to Lion. I haven't installed latest update to my airport extreme so giving that a shot tonight.

I'm experiencing something similar (https://discussions.apple.com/thread/3311988), but no solution yet. Maybe it is related to the new "low power wake" feature of Lion? Is there a way to disable this feature and go back to normal WOL?

Still same problem here. Mostly a nuisance for me with ATV2, which doesnt wake the mac and sometimes needs a restart of itunes to see the library also.

It would be worthwhile reporting this to the Apple Bug swatters: https://bugreport.apple.com/cgi-bin/WebObjects/RadarWeb.woa/wa/signIn

(You need to be registered as an Apple Developer).

As luck would have it - this is happening for me too now!

Me too. Trying to gain remote access but wake on lan is only a partial wake so my screen sharing session won't start.

Any news on when this will be fixed? I have had this problem ever since upgrading to Lion. I cannot connect on the same network at home, or outside of the house when my displays are asleep on my Mac Pro (I never put the hard drives to sleep). Also, I have trouble using the RealVNC app for iPad because of this.

You have to turn off the "dark wake" kernel feature in order to get the machine to come completely out of sleep mode when you send it a WoL packet.

To do so, I did the following (please don't do this unless you're familiar with using vi and editing XML files):

1. Opened a Terminal window.
2. Changed to /Library/Preferences/SystemConfiguration by typing the following: cd /Library/Preferences/SystemConfiguration
3. Edited com.apple.Boot.plist using vi under sudo (because the file is owned by root):
   1. sudo vi com.apple.Boot.plist
   2. Moved the insertion point down to the <string> associated with the Kernel Flags <key>
   3. Hit the "i" key to begin inserting text
   4. Typed darkwake=0
   5. Hit the "esc" key to exit insertion mode
   6. Typed ":wq" to save the file and exit
4. Rebooted the system.

Changing the dark wake setting had no effect for me, I am still unable to wake the Mac Pro from display sleep. What is weird though, is that I can usually wake the display if I connect within maybe ten minutes, but after that I have to get up and move the mouse to wake the Mac Pro for the connection to actually establish.

DalekSec, what's your hardware setup like? I don't know anything about RealVNC on the iPad, but all works as expected with my MacPro. Are you sure you're sending a WoL packet to the sleeping machine before trying to do anything with it? I use WakeOnLan to wake up machines on my network.

I have a MacPro 3,1 with an ATI video card. Before making the setting I detailed above, when I'd send it a WoL packet, it would do nothing. Now that Dark Wake is turned off,when it's asleep, I can send it a WoL packet from anywhere on my network and it will wake up and the displays will turn on, just as if I had pressed a button or clicked the mouse. Screen sharing works using Screen Share from my Macbook, and VNC (I use Chicken of the VNC) works too.

Worked for me. Thanks

How about clicking that "Like" button on my post? I do love gold stars. 🙂

I did already? Your first post? Although my login here seems to randomly fail, asks to verify my email address over and over. Sigh. Maybe thats a problem.

Scott

I'm on a MacPro5,1 OS X (10.7.3), 16gb ram, 120gb ssd (boot drive), two 2tb hard drives, and ATI Radeon HD 5870 1024 MB.

I also have to 24" led cinema displays connected.

The only way I would be sending WoL packets (I assume) is through the Screen Sharing app...

Using RealVNC on my iPad, when I AM able to connect, it shows the fast-user-switching screen (lists all of the accounts on my computer) as opposed to my desktop. If I select my account and enter my credentials, it sends the login command but discconects my VNC session.

Message was edited by: DalekSec

I don't think Screen Sharing sends WoL packets. Do you mean Screen Sharing or Remote Desktop? I don't have the latter, since it's payware and I don't need to run separate desktops over the network; I just want to see what's on the machine's screen. I tried waking my sleeping MacPro from my laptop using Screen Sharing, and it didn't work. I use the (free) Wake On Lan app to send a WoL poke to the MacPro so that it wakes up, and then I can browse to it and start a screen sharing session. It only asks for login credentials in order to start the screen sharing session; once the session starts, I see whatever is being displayed on the monitor.

BTW, how's that Radeon HD 5870 working out for you? Did you have to flash it to get it to work? What brand do you have? I'd like to upgrade the card that came stock with my system, and it seems that the 5870 is still quite competitive, even against newer ATI cards. The HD 2600 I have breaks into a sweat just trying to run both of my monitors at 1080p.