Cannot use Wake on LAN, unless that "allow this computer to turn off the device to save power" is checked

Wake on LAN - power management

On my Media Center PC, I am unable to use Wake on LAN unless "allow this computer to turn off the device to save power" is checked (in the tab power management of the adapter in the Device Manager). "Allow this device to wake the computer" and 'Allow only a magic packet wake the computer' is checked, but become grayed out when "allow this computer to turn off the device...". ' is not checked.

The problem is, Wake On Lan doesn't work unless the computer has been asleep for a short period of time. If I try to activate the computer using WOL after about 10 minutes, he never wake. I guess that's because "Allow this computer to turn off the device to save power" is checked, the machine is before turning off the network adapter.

Is it possible to force the computer to disable the NETWORK card, but would retain the capability of WOL? Or ensure you THAT WOL works little regardless of how long the PC has been asleep?

The machine is a Windows 7 PC with a Nvidia nforce network controller.

By the way, I have a laptop on the same cable network that has all three items checked in the tab for its NIC device power management, and this machine can be awake at all times using WOL, regardless of how long he has been asleep, this issue must therefore be with the configuration of the Media Center computer.

I would be really grateful for any suggestion, I spent a lot of time trying to get this to work!

See you soon

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Hello

If the systems are only a sleep you don't need a magic packet.

If computers are set to wake on any network traffic all Ping or arp will wake them up.

For this configuration, it is best to disable the saving of NIC.

There may be some variations on where is the energy saving setting.

Here are a few examples, YMMV, look around your systems.

Example, http://www.ezlan.net/example/powersave.jpg

Example, http://www.ezlan.net/Win7/power_sav_wireless..jpg

Example, http://www.ezlan.net/Win7/power_save_win7.jpg

Example, http://www.ezlan.net/Win7/adv_power-sav.jpg

----------------------------------

Real means WOL shut down a computer on Hibernate real position, http://www.ezlan.net/WOL.html

However as these has involved the PSU cooperation. Motherboard. Network card and are not considered critical by the industry for the user end is a YMMV situation.

12 Desktop who are under my immediate control (mix and match brands and processors). Only three are fully compliant and properly awake.

Three satisfied partially, the rest don't care my desires/needs of Wake on LAN.

On the positive side, since it is now fashionable to go green, the percentage of new computers that keep the better sleep habits significantly improved.

Jack - Microsoft MVP, Windows networking. WWW.EZLAN.NET

Tags: Windows

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