Computer wakes up on its own

  • Thread starter Thread starter Neil Howie
  • Start date Start date
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Neil Howie

My HP laptop has taken to waking up from hibernation with no
intervention from anyone. Event log tells me that it happens at the same
time each day.

There is no setting in the BIOS for wake on lan and since the only
connection is a wireless one and one of the first events is a tcpip that
tells me Windows discovers that the wireless adapter is inactive, I am
at a loss to know what is happenning. I cannot find any scheduled
events, but I don't know how software can cause this on a computer which
I believe to be off, or is it still functioning in the hibernation
state?

Please can anyone help me put an end to this behaviour - I am tired of
finding my battery flat.
 
Have you turned off Windows Udate?

Have you disabled Anti-virus software from downloading its own updates?

Any other Apps which may be calling home?
 
Are these apps capable of powering up the computer and restoring the
hibernation memory image from the hard drive? If so, how? I was under
the impression that the computer was not running.

--
Neil

Anti-spam - Domain is really oakleaf # idps ~ co + uk (change symbols to
dots)




| Have you turned off Windows Udate?
|
| Have you disabled Anti-virus software from downloading its own
updates?
|
| Any other Apps which may be calling home?
| --
| Newell White
|
|
| "Neil Howie" wrote:
|
| > My HP laptop has taken to waking up from hibernation with no
| > intervention from anyone. Event log tells me that it happens at the
same
| > time each day.
| >
| > There is no setting in the BIOS for wake on lan and since the only
| > connection is a wireless one and one of the first events is a tcpip
that
| > tells me Windows discovers that the wireless adapter is inactive, I
am
| > at a loss to know what is happenning. I cannot find any scheduled
| > events, but I don't know how software can cause this on a computer
which
| > I believe to be off, or is it still functioning in the hibernation
| > state?
| >
| > Please can anyone help me put an end to this behaviour - I am tired
of
| > finding my battery flat.
| >
| > --
| > Neil
| >
| > Anti-spam - Domain is really oakleaf # idps ~ co + uk (change
symbols to
| > dots)
| >
| >
| >
| >
| >
| >
 
I am sure that this post will only be partially helpful, but I can think of
three things that will cause this, though there may be more:

1). Modern motherboards sometimes have an automatic wakup "alarm" setting.
Check your BIOS.

2). Also, there is a programatic method to wake a modern computer which is
called a "waitable timer." A programmer can use an API call to create and
set a waitable timer that will cause power management to fire up the computer
at a given time (CreateWaitableTimer and SetWaitableTimer are the APIs). I
know the computer seems to be off, but power management on the motherboard is
still awake and aware. It is no problem for a program to wake the PC, but I
cannot think of a reason to do so.

3). I am guessing here, but if your PC has wake-on-lan set by default (you
said there are no settings), your computer might be recieving receiving a
Magic Packet (a packed used to wake a computer) over the air. If this is
the case, it is not accidental since your MAC address is needed (plus the IP
and subnet mask) to wake a PC. Your PC would have to be equiped with a
wake-on-lan NIC to do so.

Vinson
 
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