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Wake on LAN

Last response: in Windows XP
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September 1, 2011 12:41:12 AM

Hi ALL. I have two PC (say, "A" and "B"). "A" can auto-boot at a preset time from BIOS and "B" can't. In my application, I need all system machines to boot without having to be turned on. I can deploy WOL (Wake On Lan) from "A" to "B" manually (post-login) and it works perfectly. I am trying to find a way (probably registry tweak) whereby I can deploy WOL through a batch (or EXE) file which runs pre-login (command line only, no GUI). In other words, I don't want to have to login prior to WOL being deployed. So, I'm looking at "A" auto-booting (via BIOS) and that in turn deploying WOL to automatically boot "B" without any user intervention. Any ideas? Thank you. Mick

More about : wake lan

September 1, 2011 1:30:16 AM




It seems if "B" is off, it's off, no?

Use machine "A" with the old-school parallel port and send an output to a pin to trigger a solenoid that pushes the power button on "B" with handshaking so it stays pushed until it actually punches the power button and releases. You could also turn it off from a distance this way too. Just a passing thought.

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September 1, 2011 2:18:12 AM

Hi tigsounds. Thanks for your prompt response. Great idea except that in reality there are a number of machines in each group and a number of groups. To answer your question .... yes "B" is off. That's not a problem as Wake On Lan powers it back on (the word "wake" being a little deceptive here). The key to my request is the fact that I require no user intervention for the machines to be turned on so that they are ready and waiting (at the login screens) when the users arrive. Cheers.
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September 1, 2011 2:55:38 AM

Quote:
So, I'm looking at "A" auto-booting (via BIOS) and that in turn deploying WOL to automatically boot "B" without any user intervention.



If "A" starts without needing a password, and it has a batch file to ping all the other computers, they should all wake up.... right? Put the batch in Windows startup and if you re-boot during the day, so what, you do another ping... harmless. Have "Computer Browser" service enabled on all machines so they will wake up a bit smarter about everybody else on the network.
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September 1, 2011 4:34:40 AM

True ... unfortunately, "A" does not boot into Windows without a password and that Windows password is user specific (ie. non-generic). "A" boots from BIOS from a "Boot At 06h00 setting" but it only boots to the login screen (the other older PC's don't have this BIOS boot function). So the problem I have is that a single user needs to log onto "A" before my batch file runs and all the other PC's will turn on. That is why I need to be able to run my scripy pre-login. Apologies for the confusion.
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Best solution

September 1, 2011 5:29:15 AM

Maybe you could make a change to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\BootExecute

and substitute your batch for autocheck autochk *

see also:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Session Manager

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Control\Session Manager

More resources:

HERE
HERE (also works with XP)
HERE
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September 1, 2011 7:26:16 AM

Hi tigsounds. Thank you very much for your effort and input. I will try this and let you know how I get along. Cheers, Mick
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September 1, 2011 10:23:25 AM

Thank you very much tigsounds. I followed the instruction under your heading "More Resources" and it worked a treat. Exactly what I wanted to achieve. Thank you for sharing your experience. Cheers, Mick
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September 1, 2011 4:21:26 PM




Where there's a will, there's a way. :) 
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September 12, 2011 7:58:04 AM

Best answer selected by thefixitguy.
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October 24, 2011 10:56:59 PM

This topic has been closed by Area51reopened
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