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When I send WoL packets over my network the specified boxes tend to wake up the first time I send the packet each day, but if I turn the box off then subsequent WoL packets tend to be unsuccessful.

Is Wake on LAN designed to have a "cool-off" period or something? Or is there another reason for this?

3

Rick, I suspect it's to do with the sleep state: you know, S1, S2, S3, S4, S5.

Maybe your computer is in S3 at the beginning of the day but then you turn it off to S5? I think some computers can wake from S5 but others cannot.

0

That is because the software you are using is not sending a "subnet directed broadcast"

When your computer is shut down it's ip address will remain in the arp cache for a while but will be removed at some stage. Try different software that you know will work with subnet directed broadcasts.

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    That's wrong on so many levels. – John Gardeniers Jan 4 '11 at 12:00
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    Care to explain any one of those levels ? – Depicus Jan 13 '11 at 23:20
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    4 years and still no explanation from "John" which is perhaps why new people don't like posting here with people like John. And yes I still think it was technically a very good answer. – Depicus Jan 31 '15 at 14:32

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