How to enable wakeup on LAN for computers

[phoenix55]

I have a few computers that I administer on a small network and I would like to be able to remotely access these via Teamviewer.

I have set up Teamviewer on all of them and can remotely access them when they are powered on and do what I need to do which really saves a lot of time by not having to drive in all the time for support calls. I have a computer there that is on permanently that I can remote to to wake the computers up.

Unfortunately not all of them seem to be able to be woken up on LAN.

I set all the network settings in Teamviewer (wake on LAN) and network adapter in Windows but can't seem to find the wake on LAN setting in the BIOS for the Lenovo G510 laptop.

The same is true for the ASRock motherboard desktop.

Any idea where to set this in the BIOS as I think that this could be the problem?

Are there any other settings I can check?

Is there perhaps another tool or method I can use to wake the computers up and then once they're awake, continue with Teamviewer?

 

[Johnatan56]

Right click my computer > manage > device management > network adapters
Choose your WiFi adapter > Right Click > Select Properties.
A new window should appear > Go to the Power Management Tab.
Then you will be able to see the menu shown in the illustration below.
Check the neccesary boxes to Enable the "Wake On LAN"

Though for a different model of your laptop:

Welcome to Lenovo Community Forums!

This may not be possible. Since this is not supported in BIOS
When the computer is in Hibernate and/or in shutdown state it need to cross the BIOS to wake up the computer or turn it on.

Sleep will be ok since the LAN card supports it and it is the OS that wakes the system up and not the BIOS.

Regards
Solid Cruver
https://forums.lenovo.com/t5/Lenovo-B-and-G-Series-Notebooks/G710-Wake-On-Lan/td-p/1518040

Not sure where in the BIOS though, sorry.

 

[sajunky]

Unfortunately not all of them seem to be able to be woken up on LAN.

I set all the network settings in Teamviewer (wake on LAN) and network adapter in Windows but can't seem to find the wake on LAN setting in the BIOS for the Lenovo G510 laptop.

Do you enter setup in supervisor mode on Lenovo? If supervisor password is set, you will enter BIOS setup in user mode and some options are not available. Reset all BIOS passwords. If you still don't see wake-up on LAN option in BIOS, it might be only accessible from the system management software from Lenovo. The same about other brands.

Some BIOS settings are hidden by other options. By example on Lenovo T500 laptop "Wake On LAN" option is only accessible when "Ethernet LAN option ROM" is enabled.

Some computers have completely separate option ROM accessible by a different key combination during BOOT. In such case you can't find anything in the main BIOS setup. If you have add-on network card it is the same story.

Regarding waking up mechanism itself, it is an industry standard. Poor or incompatible drivers can prevent from proper booting from some Sx states. If problem is detected by OS, some options in LAN adapter properties will be not accessible.

 

[phoenix55]

Though for a different model of your laptop:

Not sure where in the BIOS though, sorry.

Thanks Johnatan56 ;-D

So for Wake On LAN to work, the computer must be in Sleep mode, not shutdown or Hibernate?

 

[phoenix55]

Do you enter setup in supervisor mode on Lenovo? If supervisor password is set, you will enter BIOS setup in user mode and some options are not available. Reset all BIOS passwords. If you still don't see wake-up on LAN option in BIOS, it might be only accessible from the system management software from Lenovo. The same about other brands.

Some BIOS settings are hidden by other options. By example on Lenovo T500 laptop "Wake On LAN" option is only accessible when "Ethernet LAN option ROM" is enabled.

Some computers have completely separate option ROM accessible by a different key combination during BOOT. In such case you can't find anything in the main BIOS setup. If you have add-on network card it is the same story.

Regarding waking up mechanism itself, it is an industry standard. Poor or incompatible drivers can prevent from proper booting from some Sx states. If problem is detected by OS, some options in LAN adapter properties will be not accessible.

Thanks sajunky ;-D

Not sure how I log in to BIOS via Supervisor Mode on Lenovo, but will then check if I can see those WOL settings as think they may be hidden under something else ;-D

 

[phoenix55]

Must the computers and laptops be in sleep mode, NOT in Shutdown or Hibernate state?

Is there something on the network router that needs to be checked?

Does it make a difference if some are using wifi whilst others are on cabled network?

All the computers and laptops are Windows 10 now (some are 32bit and others are 64bit)

They all have the latest Teamviewer version installed (11.0.63) and have Easy Access for the Teamviewer account enabled with the correct password

I checked all the network adapter settings and Power Management settings and these seem to have WOL enabled.

See attached images
;;;;

 

[phoenix55]

I've checked the BIOS settings for the 3 desktops (2 with ASRock motherboard and 1 with FOXCONN motherboard) and think I've managed to find and set the WOL setting there.

I tested the 3 desktops and was able to wake them all up from Sleep, only 1 from shutdown but will need to test that one again as not 100% sure it was valid

Now it's just the laptops which have the same network settings as the desktops so need to get into the laptop BIOS to check that the WOL settings are there.

 

[sajunky]

Is there something on the network router that needs to be checked?
Does it make a difference if some are using wifi whilst others are on cabled network?

A1. Yes, definitely. Make sure that wake-up magic packets travel across different subnets. I don't think you can handle this matter yourself without assistance. Rather move PC to the same subnet and see whether it wakes up there.

A2. Some chipsets allow to wake up from WiFi. It is called WoWLAN, Intel Centrino Technology by example.

About MS Windows from Wikipedia (very good article, BTW): https://en.wikipedia.org/wiki/Wake-on-LAN

Modern versions of Microsoft Windows integrate WoL functionality into the Device Manager. This is available in the Power Management tab of each network device's driver properties. For full support of a device's WoL capabilities (such as the ability to wake from an ACPI S5 power off state), installation of the full driver suite from the network device manufacturer may be necessary, rather than the bare driver provided by Microsoft or the computer manufacturer. In most cases[citation needed] correct BIOS configuration is also required for WoL to function.

The ability to wake from a hybrid shutdown state (S4) or a fully powered off state (S5) is unsupported in Windows 8 and above,[20][21] and Windows Server 2012 and above.[22] This is because of a change in the OS behavior which causes network adapters to be explicitly not armed for WOL when shutdown to these states occurs. WOL from a sleep state (S3) or non-hybrid hibernation state (S4) is supported.

Note the first highlighting to get to the right place.

 

[phoenix55]

Well so far I think I've managed to sort this out and am now able to wake up the desktop computers and laptops from Sleep mode.

Here's what I discovered and did to get this to work:

Seems like waking up from Hibernate or Shutdown is not possible. Seems like a Windows thing perhaps

The BIOS settings for the ASRock motherboard computers was under Advanced -> ACPI Configuration -> PCIE device Power On = Enabled. The settings for this on FOXCONN motherboard computers was easier to find under Power Management Setup ->Wake up on LAN = Enabled

The BIOS settings for the Lenovo G510 laptops was done by shutting down the computer and then pressing and holding for a while the restore button (small arrow next to power button). This starts up the laptop where you can select to go into the BIOS and set enable it from there. I had to ensure that the setting for lid closed sets the computer to Sleep mode and not Hibernate.

I checked the network adapter settings on all the computers and laptops to ensure that from an operating system point of view, Wake On LAN is enabled.

Teamviewer settings were also checked.

More info here: http://www.groovypost.com/howto/enable-wake-on-lan-windows-10/

And then viola, if the computers and laptops are in Sleep mode, I can wake them up via Teamviewer and continue as usual

I found this handy tool to wake up computers using the MAC address but not sure if I need that right now

http://aquilawol.sourceforge.net/



I also found recently that when there's a power failure, the desktops don't restart automatically when the power is restored but that's easy to fix with the relevant settings in the BIOS (these are listed as different things on different BIOS settings)

 

[phoenix55]

I now have a different problem

I was successfully able to wake on LAN (WOL) all my computers when they were wired (connected via network cable) but for improved network management I decided to move then to wireless as the wifi access points have better network stats and management tools.

The problem now is that I can't seem to wake on wireless lan (WoWL) the computers

From what I can see only certain network adapters have this enabled plus wireless connectivity is done when the OS is on, so doesn't seem to be possible to wake up computers if they are connected via wifi.

Is this true?

If not are there ways to enable this so that the wifi connected computers can be woken up?

Hope that all made sense ;-P

 

[sajunky]

From what I can see only certain network adapters have this enabled plus wireless connectivity is done when the OS is on, so doesn't seem to be possible to wake up computers if they are connected via wifi.

Is this true?

This:

A2. Some chipsets allow to wake up from WiFi. It is called WoWLAN, Intel Centrino Technology by example.