Laptop goes to sleep long before it should be

Hello folks.

I have an HP Probook 650 upgraded to Windows 10 Pro.

I have set the power and sleep settings all to long times (i.e. 3 hours  before going to sleep both on batt and mains) however the user is finding that the laptop goes to sleep after about 15 minutes or so of inactivity.

What could be causing this?

Also, lock-screen is disabled.

tracyprierNetwork AdministratorAsked:
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yo_beeDirector of Information TechnologyCommented:
Is this computer part of a domain. If so, are there Group Policies being applied?

Do the setting revert or does it still show 3 hours?
tracyprierNetwork AdministratorAuthor Commented:
yes but there are no gpo settings applied for these settings
yo_beeDirector of Information TechnologyCommented:
Is the computer or the monitor going to sleep?
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tracyprierNetwork AdministratorAuthor Commented:
Computer, hit the space bar and it wakes up to the locked screen
JohnBusiness Consultant (Owner)Commented:
In addition to the above suggestions, Is it plugged in, or on battery (battery saver could be running).

Open Control Panel, Power Options , and check all the detailed power options around sleep, hybrid sleep (turn this off), lid functions, power button functions. All these AC and Battery.
tracyprierNetwork AdministratorAuthor Commented:
Its on mains in a docking station. I will check all the settings you mention
JohnBusiness Consultant (Owner)Commented:
The docking station might interfere with sleep as some are meant to be always on.
bbaoIT ConsultantCommented:
can you please upload a screenshot showing where the client applies the 3-hour setting?
JohnBusiness Consultant (Owner)Commented:
Actually a laptop does not need to sleep in a dock. That is on AC, not battery. Set AC to be always on, but allow the monitor to go black (off) after 15 minutes.

Then take the machine out of the dock altogether and check sleep functions on battery
Andrew LeniartIT Consultant & Freelance JournalistCommented:
Hi Tracy,
What could be causing this?
I'm not familiar with that particular laptop, however, in addition to the above suggestions, I would also boot it into the laptop's BIOS and check if any settings there have anything to do with sleeping or shutting down. I've seen some laptops that have settings which over-ride anything configured in Windows settings.

I hope that's helpful.

Regards, Andrew
what doez the laptop show when docked - is it on battery?  if so set it on AC and test
tracyprierNetwork AdministratorAuthor Commented:
docked it is on mains
tracyprierNetwork AdministratorAuthor Commented:
thanks Andrew will check BIOS :)
JohnBusiness Consultant (Owner)Commented:
Sleep should really be used in an undocked situation. Docking on mains is normally for always on use. That is a very practical approach for you
You can use powercfg to run a sleep study. Follow microsofts doc here to use the tool.
you said 'the laptop goes to sleep after about 15 minutes or so of inactivity.' check if it is Always after the same time or not
same time means a software setting imo, different times  can be anything
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