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General discussion

Nightly Turn-on

Sep 3, 2005 3:53PM PDT

I recently got Cable internet service. Since then, my computer turns itself on at night. Last night I unplugged the power cable to the modem, and the computer stayed off. I have since disabled both of the Remote access settings in Services. These were previously set to Manual. I could not locate a ?Wake on Lan? listing in my BIOS.
I?ve noticed that in Local Area Connection / Properties / Configure / Advanced / the ?WakeUp on ARP/PING? is enabled. Could this be causing my computer to power-up on it?s own?
Also - in Power Management, I have the box checked which reads ?Allow the computer to turn off this device to save power?, but the modem remains lit-up after shutdown. Does that mean that the modem is still on, and therefore leaving my system vulnerable to outside access? Is there a setting to power off the modem, when the computer is powered off?

Win XP/SP2

Discussion is locked

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Turns on or wakes up?
Sep 3, 2005 11:51PM PDT

If the PC is turned off it shouldn't turn itself back on. That takes a power switch.

Wake up? Evidently you are using hybernate/sleep/stand-by, not the Start, Turn off the Computer, Turn off. Below is how to disable the Wake on Lan:

Click Start, right-click My Computer, and select Properties.

A System Properties window appears.

Click the Hardware tab, and then the Device Manager button.

Under Network adapters, double-click the name of the device used on the network.

Click the Power Management tab.

Deselect the Allow this device to bring the computer out of standby option under Power Management.


Power management will remove power from the NIC, not the modem. If the PC is turned OFF, not hybernate/sleep/stand-by, then you're safe. But I leave my cable modem on, my router on, and turn my PC OFF.

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Power on
Sep 4, 2005 4:37AM PDT

Does it always require the physical pressing of a switch, to turn a system on? It doesn't require one, to turn it off. I was worried that an external signal, coming in through my cable modem, could actually power-up my system. Shows how much I know. I don't use any of the hybernate/sleep/stand-by features. As for the box "Allow this device to bring the computer out of standby", it is unchecked. But the box above it which powers the device off is checked. It does not power-off the modem as far as I can tell. From what you're saying, it is safe to always leave my modem on. (P.s. I left the modem on last night, and the computer was off this morning.) Thanks for sharing your knowledge on this subject.

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Switch, yes. . .
Sep 4, 2005 10:21AM PDT

If you used the Start, Turn off. . ., Turn off, it takes a button press to turn it back on. Turning off is software controlled which controls the power relay. Once the relay powers off the PC, it takes a button press to power back up.

It's safe to leave the modem on, it has no control over the power to the PC.

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Other BIOS wake on events.
Sep 4, 2005 12:31AM PDT

I've seen a wake up at some time (clock), mouse, IRQ and others. Your skill and knowledge about your machine is required to disable all the wakeup items.

I can't do much than comment since you missed the forum note. Is it showing today?

Bob

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wakeup items.
Sep 4, 2005 4:48AM PDT

I'm still learning how to disable all the wakeup items.
I beginning to think that these items could not be responsible for powering-up my system at night.
Which note? I don't think it's showing, but I may have bypassed it by using a direct link to this forum. Thanks.

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This note:
Sep 4, 2005 5:28AM PDT

Note: If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem.