WOL (wake on LAN)

jlct021

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Joined
May 24, 2009
Messages
119
I've managed to wake my machine over my LAN as well as via the Internet.
I did this by opening port 9 in my router, entering my access points IP addrsss into the DMZ and then using a small programm called WOL - magic packet sender. Everything is working great exept for one problem I cant work out; If I shut my PC down and then send a magic packet; it starts. If I switch the machine off (during boot pre Windows) using the switch at the back of the PSupply and then send a magic packet; it starts. But if I swtch the PC off during boot (pre windows) using the PC's Power switch; the machine will not start when sent a magic packet. Ive checked and tryed variation of settings in the power managment section of the BIOS, the LAN card appears to be loosing the ability to WOL once the PC's power button has been used. MOBO = MSI G31M3 V2
 

jlct021

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Joined
May 24, 2009
Messages
119
No, Its a fairly new MOBO. Doesn't seem faulty in any other respects.
 

davemc

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Apr 8, 2009
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6,518
1. If I shut my PC down and then send a magic packet; it starts.
2. If I switch the machine off (during boot pre Windows) using the switch at the back of the PSupply and then send a magic packet; it starts.
3. But if I swtch the PC off during boot (pre windows) using the PC's Power switch; the machine will not start when sent a magic packet.

Sounds like the network card is in the state of: Sent "power on" the PC, have not received acknowledgement from PC yet, will not send another until acknowledgement from PC is received.
A bad network card will never exit from this state, a good network card will time-out this state after 3 minutes or so, a better network card will time-out this state using a configurable setting.

Wait 10 minutes and retry.

Have a good look at all the configurable settings on the NIC, especially timeouts.
 

jlct021

Well-Known Member
Joined
May 24, 2009
Messages
119
1. If I shut my PC down and then send a magic packet; it starts.
2. If I switch the machine off (during boot pre Windows) using the switch at the back of the PSupply and then send a magic packet; it starts.
3. But if I swtch the PC off during boot (pre windows) using the PC's Power switch; the machine will not start when sent a magic packet.

Sounds like the network card is in the state of: Sent "power on" the PC, have not received acknowledgement from PC yet, will not send another until acknowledgement from PC is received.
A bad network card will never exit from this state, a good network card will time-out this state after 3 minutes or so, a better network card will time-out this state using a configurable setting.

Wait 10 minutes and retry.

Have a good look at all the configurable settings on the NIC, especially timeouts.

Ok thanks will do, not having gone this route before; where does one fine tune / tweak NIC card settings?
 

jlct021

Well-Known Member
Joined
May 24, 2009
Messages
119
Sorry, that's probably a stupid question; will check in device manager properties etc.
 

davemc

Executive Member
Joined
Apr 8, 2009
Messages
6,518
Meh, it could also be something on the motherboard side, where the motherboard is ignoring further requests from the NIC to power on because it is under the impression that it is in the process of powering on.

I wish you the best of luck, I scrapped the use of WOL completely and opted for always on using minimum power instead.
 

jlct021

Well-Known Member
Joined
May 24, 2009
Messages
119
Thanks. Going to give this a try instead;

TeamViewer to run as a system service

Scheduling task - Shutdown to run with out the -s -t 00 cmd (every half and hour between 7 - 10PM) so it just flashes a CMD screen but doesn't actually shut down the PC (waking it in the process)

And the scheduling - Shutdown to run with the -s -t 00 cmd at 10PM (the clients requested time to shut off)

Thus creating a window between 7 - 10PM for the client to log in.
 
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