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No Wake-on-LAN possible since updating to ML

Hi everybody,


since updating from OS X 10.7 to 10.8 (clean install), Wake-on-LAN does not work anymore. Setup: Mac mini (Early 2011) connected to Time Capsule (2nd gen) via devolo dLAN. Mac mini goes to sleep after 30 minutes and eventually disappears from the network. Sending Wake-On-LAN packets or using Back To My Mac fail, it simply won't wake up.


Wake-on-LAN worked smoothly under 10.7 after some problems. Any ideas?


Thanks and regards


Steffen

Mac mini, OS X Mountain Lion

Posted on Jul 31, 2012 1:01 AM

Reply
295 replies

Jun 7, 2013 12:30 AM in response to ffcphone

I use a Time Capsule, have connected the Mini on ethernet as well as Wi-fi (secondary interface in network settings).


Try SSH'ing into it.

If it doesn't work download wolcmd (found via the magick packet link in my previous message) which sends an explicit wake on lan message.


I use this syntax: wolcmd <The Mini's ethernet MAC address> <the router's public address> 255.255.255.255 7


7 is the UDP port for the magick packet, but 9 can also be used, so try 9 if it doesn't work, and you may even have to experiment with the subnet mask (though it shouldn't be neccessary)

Jun 7, 2013 1:06 AM in response to StigBull

I've tried using the "WakeUp" app on iOS using the MAC address and router's public address.


As previously, can wake the Mac Mini up when I'm on wifi at home and I'm feet away but when I'm at work and want to use logmein neither logmein nor WakeUp can encourage the Mac out of sleep.


I had a call from Apple Support about this a couple of weeks ago. When I last requested an update matters were sti ongoing.

Jul 1, 2013 12:31 AM in response to SteffenKaiser

Hello


New Mac Mini purchased at local Apple Store 8 days ago. Wake-on-Lan is not working.

I either have to physically go to the computer to wake it up or as I discovered on Sunday, aim an Apple Remote which is paired with the other older Mac Mini running Snow Leopard and click it a few times. The new Mac Mini wakes right up.


All the computers in the house have a static ip address from the /24 I received when I was working on building DarpaNet/ArpaNet many years ago. All iMacs are running Snow Leopard and wake-on-lan with no problem. All other Mac Mini are running Snow Leopard and wake-on-lan with no problem. The 13 inch & 17 inch MacBookPro are running Snow Leopard and wake-on-lan with no problem. Basically, any Apple Computer running Snow Leopard wake-on-lan works. Any Apple Computer running Mountain Lion wake-on-lan is not working.


Unless someone has some insight I will try Apple Support once again later today, Monday.

Jul 3, 2013 10:30 PM in response to SarahCat

I came home this evening and found all my exterior lights off. They should have been turned on by my Indigo application (which has an iOS client), however, when I attempted to reach the Indigo Server running on my Mac Mini, the server was unreachable, even on my local Airport LAN. I went to the computer and found it asleep. I woke the computer and then everything operated normally.


I then went into System Preferences -->Energy Saver -->Power Tab --> Computer Sleep - Never


Wake on LAN appears not to work. I've tried, lord I've tried, but Mountain Lion on my i7 Mini has never seemed to support wake on LAN, however, my ancient Dual Core 2 Mini with Lion did.


Not a great outcome, guys. I guess I'll be burning more power, having defeated the Energy Saver settings, which is sad. I'm going to the Apple Store on N. Michigan Ave in Chicago for an iPhone problem, but I'd take my Mini to the Genious Bar, but since I don't want to rip out and take my network, too, it seems unfeasible.


So, here I am, defeating the Energy Saver feature because Wake on LAN does not appear to operate.

Jul 21, 2013 3:54 AM in response to lexvo

I may have found something that works.

My main router is from my internet provider and I have an Airport Extreme to extend my network (bridge mode) and it also is my WiFi access point.

Before, when I put my iMac to sleep via the menu, I couldn't get it to wake on wireless LAN. I also had trouble waking it up if it had slept for over a few hours.

Today I did two things:

1) give my Airport Extreme a fixed IP adress

2) switch off ipv6 on my iMac (in Terminal, not via System preferences)

Low and behold, I can wake up my iMac now from my iPhone and iPad and access the iTunes library. 🙂

Of course, it is to early to say if this is a definite solution (hence the "I may have found) so I will try tomorrow if it still works (after my iMac slept for some hours).

Jul 21, 2013 6:20 AM in response to lexvo

hello


my entire network is made up of public static ip addresses.

my iPhone has a static ip address, from the /24 assigned to me when I worked on the DarpaNet/ArpaNet many decades ago. static ip addresses do not help. the only way so far is to not allow the computer running Mountain Lion is ever go to sleep. Which is not the best.


This one broken feature of Mountain Lion is a real turnoff. no pun intended.


the solution has to come from apple and so far apple has been a mute.

Jul 21, 2013 12:11 PM in response to artisticforge

This is exactly what I determined a few weeks ago and I agree with artisticforge that the answer must come from the currently mute Apple and that never letting the Mac sleep is not the best.


I never had the problem prior to using my new i7 Mini with Mountain Lion.


Fixed IPs, even if they work around the problem, are not a good solution for a lot of us because they are not available to us.


Apple Support - Major FAIL!

No Wake-on-LAN possible since updating to ML

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