Wake a sleeping iMac

How can I wake a sleeping iMac from my powerbook remotely? Can this be done over the internet or over my wireless home network only and how? I cannot find a program and my understanding is the macs need to be wired rather than WiFi or Internet related. Im using an airport extreme at home.
Any help appreciated.

How can I wake a sleeping iMac from my powerbook remotely?
Try using an application such as this one.
Can this be done over the internet or over my wireless home network only and how?
It can theoretically be done over the Internet, but many routers will filter out the packet. Your Mac needs to be connected to the network through a wired connection; the rest of the network can be wireless.
(33575)

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Time Machine wakes up sleeping iMac every hour - should this happen?

A previous question on this topic is now marked "answered," even though it isn't:
http://discussions.apple.com/thread.jspa?messageID=5687825&#5687825
Here's what happens. I put my iMac to sleep. Then I go to sleep. In the morning, I see that Time Machine has awakened my iMac once an hour to create a backup all night long. I don't believe this is how it should behave, but I see from the previous thread that it's happening on a lot of installs.
Any thoughts on how to prevent Time Machine from waking a sleeping Mac?
Thanks.
Message was edited by: Tim Windsor1

Good point. I was assuming that Time Machine was the trigger. I still think it is, but it's worth looking into.
Given that I can test this only once an hour (at :42, my TM launch time), here's what I'm thinking. Is this the most efficient way to isolate whether it's Time Machine or another process waking the computer.
1. Test One: Turn off Time Machine. Sleep the computer. Wait for :42. If the computer wakes in the next hour, it's definitely not Time Machine. If it does nothing in the next hour, Time Machine could be the culprit.
2. Test Two: Next, turn on Time Machine. Sleep the computer. Wait for :42. If the computer wakes at the appointed time, it's not only possible that it's TM waking the computer, it's likely. If the computer remains asleep, the result is anomalous and tells us nothing.
Anything else I should be testing?

External hard drives ejecting after iMac wakes from sleep.

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My elderly iMac (about six years old) won't wake from sleep after an electrical failure today, and starts up with a black screen.

This Intel iMac is about six years old, has had the motherboard replaced by Apple. Today we had an electrical failure, and it was asleep at the time. It refused to wake from sleep, and it seems to start up, but the screen stays black. I tried zapping the PRAM, shutting it down and turning off the surge protector, etc. . . and still, nothing. Any thoughts?

If http://support.apple.com/kb/HT3964 Intel-based Macs: Resetting the System Management Controller (SMC) does not work and you are comfortable working in the Terminal, try the following:
Enter into the Terminal the following: sudo pmset autopoweroff 0 and sudo pmset standby 0
If you like the hibernation, you can switch it back on by re-entering the commands with 1's instead of 0's. You can even change the amount of time by adjusting "autopoweroffdelay" and "standbydelay".

IMac will not wake from sleep after 10.4.8 Update

Recently after a couple of software updates my IMac goes to sleep and the Bluetooth keyboard and mouse will not wake it. The option for wake with Bluetooth is checked. I zapped the PRAM and also checked the HD, Nothing has changed. NOTE: No new software or hardware installs were done except for 10.4.8 update and the other mac software updates. This did not happen in prior versions of the OS on my iMac. Is this a new bug?
iMac G5 1.8 (pre iSight) Mac OS X (10.4.8) Bluetooth, Wake from Sleep

I've been dealing with this same issue, have tried everything, but to no avail. After MANY sessions on the phone with Apple tech support, as well as an Apple product specialist, I was advised to erase my computer and do a fresh install. I did an archive an install, which didn't help, but am not thrilled about the prospect of erasing everything and starting over. This problem started after the August 2006 round of updates. I feel it's bluetooth related, because I used a usb keyboard and mouse for a week as a test, with no problem. The funny thing is, I unchecked "allow bluetooth device to wake computer" thinking it might help, but the bluetooth devices continue to wake the computer anyway (except when it refuses to wake, of course!)
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IMac wakes from sleep on its own with Yosemite

After installing Yosemite, my iMac wakes from sleep all on its own multiple times throughout the day and night. The screen does not turn on when this occurs and it goes back to sleep on its own. I figured the my energy settings may have changed after the upgrade, but nothing is different. I have no schedule set and the "wake for network access" is unchecked.

To my knowledge, any Mac that is 1. connected to power and 2. not powered down will wake periodically for the reasons I explained, and perhaps for additional reasons known only to Apple. If disabling "wake for network access" does not change anything, all I can say is that it's working as Apple intends it to work. Before you ask, I strongly discourage you from finding clever system "hacks" or workarounds to prevent your Mac from working as designed.
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When questions such as yours arise, it helps to look at iOS. iPads and iPhones will all periodically connect themselves for the purposes of downloading emails, Messages, alerts etc. There is no way to disable that, other than to completely power down the device, which almost no one does. Apple has been inexorably changing OS X to effectively implement iOS design features such as this – for better or worse is not for us to say.
May I ask why this concerns you? Perhaps that would lend some insight regarding possible solutions.

Intuos4 tablet won't work when iMac wakes from sleep

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Viking501,
You may want to mark this thread with a correct answer which you will find in the Legend to the right. This may help other people with a similar issue.

IMac (Early 2009) always wakes from sleep after Security Update 2010-001

I posted this already in the Snow Leopard section, but wasn't able to get a resolution to the problem:
http://discussions.apple.com/thread.jspa?threadID=2309613&tstart=0
I tried all the suggested things, but my iMac still always wakes from sleep and this never happened before the 2010-001 security update. I was asked to paste the console log entry from when this happens, so here it is:
28/01/2010 08:57:47 kernel Wake reason = OHC2
28/01/2010 08:57:47 kernel System Wake
28/01/2010 08:57:47 kernel Previous Sleep Cause: 5
28/01/2010 08:57:47 kernel USB (OHCI):Port 1 on bus 0x6 has remote wakeup from some device
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Here is a solution that should work:
1. Turn off all Bluetooth devices connected to your computer.
2. Make sure Bluetooth icon in the Menu Bar is black (BT is On) and BT is not connected to anything
3. Plug in a USB mouse
4. Go to System Preferences>Bluetooth>Advanced
5. The option to "Allow Bluetooth devices to wake this computer" should now be uncheckable>Uncheck it and click OK
6. Turn on your Bluetooth devices and let them connect to your Mac
7. Try and put your Mac to sleep and then wake with the power button
8. Check if the "Allow Bluetooth devices to wake this computer" option is still unchecked (it should be)
9. Try and restart your Mac and check again if the "Allow Bluetooth devices to wake this computer" option is still unchecked (I had mixed results with this test, depending on the type of the Mac being tested)
Anyhow, this way you should be able to uncheck the option that causes the issue and it should not get checked again by itself unless you restart your computer and maybe even after that. If it does get checked again after reboot, just get used to putting your Mac only to sleep until a fix from Apple is available or repeat the above process after every reboot if necessary.
Hope this helps.
Marian

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HT1338 why do i lose wi-fi internet connection on iMac when computer wakes from sleep

Everytime my imac wakes from sleep I lose internet connection and have to go into network and reconnect. I am using OS X Mountain Lion software. Please help!

You might try looking at these Apple support articles:
http://support.apple.com/kb/PH11099
http://support.apple.com/kb/PH10662 - very simple suggestions only
Here is another thread with a suggestion:
https://discussions.apple.com/message/18848093#18848093
You also might want to consider filing a feedback report. A lot of people are having similiar problems:
http://www.apple.com/feedback/
If you monitor the "More Like This" box (top right), other threads appear. Opening them usually displays other threads.

I lose internet connection on iMac when it wakes from sleep

Everytime my imac wakes from sleep I lose Wi-Fi connection. I am using OS X Mountain Lion. Please help

You might try looking at these Apple support articles:
http://support.apple.com/kb/PH11099
http://support.apple.com/kb/PH10662 - very simple suggestions only
Here is another thread with a suggestion:
https://discussions.apple.com/message/18848093#18848093
You also might want to consider filing a feedback report. A lot of people are having similiar problems:
http://www.apple.com/feedback/
If you monitor the "More Like This" box (top right), other threads appear. Opening them usually displays other threads.

27" iMac only wakes from sleep on second attempt

My 27" iMac, as the title suggest only wakes from sleep on the second attempt. If I wake the mac in the usual way(magic mouse, keyboard or power button), I hear the hard drive start but the screen stays blank. If i then press the power button it will put the mac back into sleep then if i then wake it up again everything comes on fine. This only seems to happen if the mac has been sleeping for longer than a few minutes, but it does happen every single time.
I've obviously checked that the bluetooth devices are allowed to wake the machine. Ive been looking through various forums and haven't come across anyone with the same problem as me so far.
Ive already tried resetting the smc,pram etc to no avail.
Any ideas on what could be the problem?
Thanks
Message was edited by: ScreamingMusings

Sorry, I get it now.
If you are using the Screen Saver prior to auto-sleep, then try disabling it to see if that helps.
If not then the only other thing I can suggest is to backup and reinstall the OS X or call Apple Support.

IMac won't wake after sleep

Hi
I have a brand new iMac 21.5" with Hybrid drive.
Its OS and apps are fully update to date.
Strange thing is that it won't wake from sleep.
To reboot, I have to turn the power off at the wall and back on again. Neither of the usual
wake/reboot processes work (holding the power button briefly or holding the power button for
> 10 seconds). No combination of opt/ctrl/cmd/power work either. I have to turn it off at the wall
and back on again, after which it immediately boots.
I've reset the SMC and NVRAM/PRAM.
I've checked the power options - which are set to defaults (sleep after 15 IIRC).
I've also checked the console log at the time of sleep - and there is no indication of anything
going wrong (an example is below).
Does anyone have any other ideas as to what I can try before going through the painful process
of sending it into the shop?
Many thanks.
Paul.
Console log below. You can see the machine went to sleep after 12:05pm, and I woke it up and 8:20pm. There seem to be no unusual messages in the middle.
(The SASL failure is email... still working on that).
29/04/15 12:05:33.391 pm identityservicesd[265]: <IMMacNotificationCenterManager: 0x7fde94947690>:   DND Enabled: YES
29/04/15 12:05:33.392 pm identityservicesd[265]: <IMMacNotificationCenterManager: 0x7fde94947690>: Updating enabled: NO   (Topics: (
29/04/15 12:05:36.577 pm Mail[241]: Failed to start the SASL connection
SASL(-1): generic failure: XOAUTH2 requires user
29/04/15 12:05:44.142 pm Mail[241]: Failed to start the SASL connection
SASL(-1): generic failure: XOAUTH2 requires user
29/04/15 8:20:11.406 pm distnoted[232]: # distnote server agent absolute time: 6.328668630   civil time: Wed Apr 29 20:20:11 2015   pid: 232 uid: 506 root: no
29/04/15 8:20:11.592 pm otherbsd[231]: Could not get containing identifier from bundle: CFBundle 0x7fa663c16190 </Applications/Utilities/HP Utility> (not loaded)
29/04/15 8:20:11.592 pm otherbsd[231]: Could not obtain containing identifier for LoginItem. This LoginItem will not be bootstrapped: LoginItems/HP%20Device%20Monitor.app/ -- file:///Applications/Utilities/HP%20Utility/Contents/Library/LoginItems/HP%20De vice%20Monitor.app/Contents/Library/

I have gone to the apple support team - and they took me to the standard apple "what happens if your mac won't turn on" page
(If your Mac won't turn on - Apple Support) and walked me through the standard checks (which I'd already done).
The support guy thought it was a bad driver - I'm not so sure as I haven't installed anything new (just updates).
Anyway - I was just hoping/wondering someone in the wider community had seen this issue before I take the machine
in for servicing.

TS4209 When i wake up my iMac from sleep my wifi is disconnected. It also disconnects my iPad, my wives iPad, my iPhone & Sky On Demand which is connected via wifi. To reconnect all devices i have to switch off & then on again wifi on the iMac. Can anyon

When i wake up my iMac from sleep my wifi is disconnected. It also disconnects my iPad, my wives iPad, my iPhone & Sky On Demand which is connected via wifi. To reconnect all devices i have to switch off & then on again wifi on the iMac. Can anyone help?

Had the same issue and finally solved it. After the upgrade to Mavericks our 2 new Macbook Airs stopped connecting automatically to Wifi while the older machines the kids had still worked fine.
Bought a new airport extreme and problem solved. Our Airport Extreme was about 5 years old and was probably not compatible with the new OSX.
BTW this was after trying everything people suggested on this forum and a 4 hour marathon tech support call with Apple where we reinstalled the OSX.
***** to need to spend $200 but glad the problem got solved.
New extreme is also mega fast so its all good.

Wake a sleeping iMac

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