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The outside influence is NIS 2009 updating as far as I understand it, because if I select "Silent Mode" then computer goes into sleep mode with no issues, but if I do not select "Silent Mode" then it wakes up after approx 2-3 minutes.
How do I select sleep mode? From a key on my keyboard or from the start button but I usually use the keyboard.
I am not using a laptop but a desktop PC running Vista Home, and yes it does go into sleep mode as all of the drives shut down and I get a blue flashing light from the PC.
Information Only
I found When I was putting my computer into sleep mode it was waking up after a few minutes this happened since I installed NIS 2009 and the reason was that because of the new way the definition updates are checked (every few minutes) it was waking up the computer.
Solution is prior to putting the computer into sleep mode, click with the right mouse button on the NIS Notification icon (Task Bar) and select " Turn on Silent Mode" for 6 hours, computer then sleeps okay on return, wake up computer, right mouse button on the NIS Notification icon and select "Turn off silent Mode".
The reason I put in 6 hours because if I just put in 1 hour and came back 2 hours later I was finding it had woken up and had started downloading definitions.
Please advise if anyone sees any issues with this, apart from definitions not being updated which I understand to be a (slight) security issue for the amount of time.
rifles,
Something else is waking the computer, then. Standby is standby is standby. That means the computer is standing by and none of the software is operational. This is hardware based, which means that all the software is in stasis, including any Symantec product. NIS cannot turn the computer back on any more than a lightbulb can flip a lightswitch.
But desktops in particular do have switches that can be "flipped" by outside events such as an incoming phone call to the computer line (if you have one), a cat walking on a keyboard, etc.
Also, it is possible for an ongoing process to keep a computer from entering standby in the same way that a process Windows cannot shut down will keep the computer from rebooting or shutting down.
Yes, you are correct something else is awaking my computer, but I still need to track it down it just seemed a coincidence that it all happened after installing NIS 2009.
Good luck with finding the guilty party.
I'd appreciate it if you'd come back and let us know what you find out.
Actually, I'm pretty sure scheduled programs can wake a machine from standby (even S3). It depends on your settings and type of standby (as well as BIOS support in your machine). Windows Update is one program that can wake a computer from standby, do what it has to, and then put it back into standby (at least on Vista).
That said, I don't have any problems with NIS 2009's updates waking my computer every few minutes, so it might not be NIS. There are several settings to check out. If you're using Vista, go to the Control Panel and choose System and Maintenance -> Power Options. Then go into the advanced settings of whatever profile your machine is using and check out what's available to you to see what might be waking the computer.
Another place to look in the Control Panel is the device manager. Within there, right-click on the network adaptors, USB drivers, mouse, keyboard, etc. and check out the Power Management tab.
Hopefully this helps!
Rich
It wouldn't be the scheduled programs themselves that wake the machine, but rather a scheduler in whatever part of the machine stays responsive to input, probably (as you suggest) something that is BIOS related.
But I have never known of any Symantec product that had that option as any part of its processes.
We've had a similar query from another user and directed him (as you did) to check the power settings
Here is a MS tool for dealing with such issues (it dates back to Win 98, but the site implies it might still be useful):
http://support.microsoft.com/kb/185949
It should allow the user to see what programs keep the computer from going to standby and when (and perhaps how) it woke from standby.
First of all thanks to everyone for your replies, I tried the tool at http://support.microsoft.com/kb/185949 but it did not run to well under Vista, so I had a look in device manager and my Nvida nForce 10/100 Mbps Networking Controller had been allowed to wake the computer and since unticking this it appears to stay in sleep mode.
The only other setting that may! Have caused it (but not convinced) was my power setting was to Turn off the Display in 15 mins (no issues there) but I also had Put the Computer to Sleep in 5 Hours so I have changed that to Never as I always to this manually
rifles, Iām glad to hear that you got this problem solved. It sounds like somehow your network controller got reset to allow wake-on-lan packets. See this thread for more information about the issue.
I will back rifles on this. I loaded the 2009 update a couple of days ago and my computer started waking up from standby. I found this thread by googling "Norton 2009 Standby".
Thanks to this thread, I was able to resolve the problem by unchecking all the various boxes in the wake on lan section for my NIC.
Unfortunately, I have a few other computers that require wake on lan to be enabled, so I will wait until there is a definitive resolution to this problem before upgrading them.
Riffer was right! I too was able to resolve the problem by Disabling the 'wake on lan' section for my Network Card.
Thanks riffer. I tried everything else and nothing else worked.
Rifles, this doesn't make sense to me.
How can a computer in standby wake itself up without outside influence?
More likely is that it never went into standby to begin with. How do you put the computer into standby? Closing the lid? Selecting that as a shut-down option?
When you launch standby, do you check to make sure that it has actually gone into standby? (I do this myself by listening for the fan and harddrive to shut down; a blank screen is not enough.)