If your Mac goes to sleep unexpectedly

Oct 22, 2018  Now when my mac is asleep, I see the power button next to it in the teamviewer console, but pressing it, doesnt wake my mac. Whats weird, is that I used to have a Mac Mini (up until last week), and It used to go to sleep and I dont recall having to jump through any of these hoops to make it available in TeamViewer.

Make sure that Energy Saver is set up the way you want: choose Apple () menu > System Preferences, then click Energy Saver. Adjust one or more of the following controls to affect when your Mac goes to sleep. Some of these controls might not be available on your Mac.

• 'Turn display off after' slider
• 'Display sleep' slider
• 'Computer sleep' slider
  If a slider is set to 'Never,' sleep is disabled for that feature.
• Schedule button

Make sure that you aren't putting your Mac to sleep accidentally:

• Pressing the power button can put your Mac to sleep.
• Moving your mouse pointer to a hot corner can put your Mac to sleep, depending on your Mission Control settings. Choose Apple menu > System Preferences, then click Mission Control. Click the Hot Corners button, then see if any of the corners are set to 'Put Display to Sleep.'
• Using magnets near your Mac notebook can put your Mac to sleep.

If your Mac doesn't go to sleep when you expect

Check your Energy Saver settings as described above, and be aware that your Mac won't automatically go to sleep unless it's inactive:

• The same network activities that can wake your Mac can also keep your Mac from sleeping.
• Any app or other process that's running on your Mac could also be keeping your Mac awake. Check the Energy Saver pane of Activity Monitor to identify apps that need your Mac to be awake. If 'Yes' appears in the Preventing Sleep column for an app, your Mac won't automatically sleep while the app is running. Other apps prevent sleep only when doing certain things, such playing music or video, printing, or downloading files.

If you started from macOS Recovery on a Mac notebook, automatic sleep is disabled as long as the Mac is using AC power.

If your Mac wakes unexpectedly

Your Mac might wake for these activities:

• Network activity that uses the Wake on Demand feature. Examples of network activity include iTunes sharing, photo sharing, printer sharing, file sharing, and using Back to My Mac.*
• Enhanced notifications from FaceTime, Messages, and other apps and services.
• Bluetooth activity. To prevent Bluetooth devices from waking your Mac, choose Apple menu > System Preferences, then click Bluetooth. Click the Advanced Button, then deselect 'Allow Bluetooth devices to wake this computer.'

If you have a MacBook Pro (2016 or later) or MacBook (Retina, 12-inch, 2017), note that these models are designed to start up when you open their lids or connect them to power.

*As of July 1, 2019, Back to My Mac service is no longer available.

If your Mac doesn't wake when you expect

Your Mac might pause a few seconds before it wakes up. If it doesn't seem to wake at all, check for these possibilities:

• Your screen brightness might be turned down.
• If you're using an external display, your display might be turned off.
• Your Mac might be in safe sleep. To wake from safe sleep, press the power button.
• Check for a sleep indicator light, if applicable, and make sure that your Mac isn't turned off.

If the previous steps don't work

These additional steps may help identify or resolve the issue:

• Reset the SMC.
• Reset NVRAM.
• Disconnect external devices other than your Apple keyboard, mouse, and display. If that resolves the issue, gradually reconnect your devices, testing each time, until you find the device that is interfering with sleep. Then check the documentation that came with the device, or contact the device manufacturer.
• Start up in Safe Mode to see if the issue is related to non-Apple startup items, login items, or kernel extensions.
• Try to isolate the issue by using another user account.

If you still see the issue, contact Apple Support.

FaceTime is not available in all countries or regions.

I would also recommend:
www.dyndns.org
www.no-ip.com
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Jayson --When Microsoft asks you, 'Where do you want to go today?' tell them 'Apple.'

there's this one too http://www.dslreports.com/wakeup

Yeah, but it looks like that's for sleeping computers on the same LAN as the one you're currently on. This hint is more for people that want to wake up their Mac remotely via the Internet like if you wanted to access your home computer from the office or a friend's house but it's asleep.

So it seems.
But actually it works over the internet if you manually add the host with IP-Address and Ethernet-ID.
I use it for remotely waking an iMac behind a NAT that i have to access for screensharing.

Believe it or not, some people are forced to use a PC at work, and this solution won't work =( The poster's idea is good.
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In /dev/null, no one can hear you scream

This does not work if you are behind an Airport router, even if you're hard wired via the ethernet port.
The Airport router does not forward the 'wake-up' packet.
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bukweet

If the router implements port forwarding correctly any old port shouldn't allow a WOL packet into the network (read big security hole). WOL is a UDP packet sent to port 9 and with a proper router you would need to forward UDP/9 to the system you want to wake up.

Actually, that's only partially true. A wake on lan frame can be embedded in any protocol and is nothing more than a specific stream of data. It's composed of 6 bytes 0xff followed by the MAC-address (ethernet address) repeated at least 16 times, ie

to wake a computer with the MAC-address 00:11:22:33:44:55. The first six bytes are for syncronization, and the rest identifies the computer. This can, as I said, be embedded in any protocol, or, for that matter, as a raw ethernet frame. UDP-packets seems to be the most common solution though, probably because it's simplicity.

Anyway, it ought be quite difficult to detect this kind of data stream (at least without false positives), and as far as I can tell, it's possible to insert a packet (ie TCP-packet) containing the magic string through a firewall. This, of course, may or may not be the case in the hint :)

My iBook is connected to the Internet wirelessly, but I wanted it off when I wasn't using it, too. What I do is leave the modem cable connected and enable 'wake on modem ring'. Then, when I want to wake the iBook up so I can SSH in to it, I ring my house.

You Sir (or Madam) are brilliant.
I've never been entirely comfortable with the thought of sending WOL packets across the Internet (particularly since the mechanism was really designed for intranets and lacks any form of authentication) except with a VPN router, but the idea of using a POTS ring just to wake a sleeping Mac is perfect!
Not only is the wakeup signal (ring) kept safely 'out of band' with the SSH connection itself, but I'm thinking it may even be possible to target the Mac so that it only wakes up when specifically selected. How? By using one of those 'comm-share' boxes that allows you to re-direct incoming calls/rings by sending a touch-tone sequence during the initial ring. (These boxes are often used to share an incoming line between a phone, answering machine, fax and modem)

OK...i just spent 3 or 4 hours trying to figure this remote wake up problem out. Timbuktu is useless without being able to wake up my sleeping office computer. It amazes me that a product that complex CAN NOT do this (i just called and confirmed this). It has to be nearly 100% of their users have this problem. Hell, that's what the program does is remote communication.
So about an hour ago I got this modem idea...and then saw this post. Hell, this is my next thing to do when I get back to the office: hook up my old phone line to the modem. Duh.
I have iChat running and can see if my computer wakes up or not :)
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:)

This is a great thread, but I was wondering if anyone knows how to make WOL work when you have OS X set to 'Require password to wake this computer from sleep or screen saver' in the Security control panel. When the password setting is on, waking the machine just shows a login screen, and it quickly falls back asleep when I have no way of entering the password from my remote connection.
I feel like I shouldn't have to give up security just so I can wake the machine...

How To Have Teamviewer Wake Up Mac Download

Any solution to the fall back asleep after 30 seconds when a password is set - besides no password or no sleep?

isnt your MAC address protection enough?

I was successful in waking my G5 PowerMac, but neither of my iBooks appear to respond (even after shutting down the firewall, setting the correct options, plugging in the adapter, etc.)

How To Have Teamviewer Wake Up Machine

is it this perl script that would let you build a wake function on your own website(like dslreport, just with fixed addys in a single button) and if so.. any hints on how to incoporate it in a html/flash site?