Troubleshooting:Computer won't fall asleep and won't keep monitor(s) off. Error

Computer won't fall asleep and won't keep monitor(s) off.

Have a newer 64bit Windows 7 Prof Asus desktop with dual monitors.
Computer has worked fine for almost a year now.
Recently the computer will start screensaver as directed but will not turn off monitors after desired time nor enter sleep.
This is usually the problem.
The computer will also not even start the screensaver much less enter sleep mode.
Also, if and when it does start screensaver, and then turns off monitors, it will usually immediately wake or wake after a few minutues.
Its quite unpredictable
in how the computer will misbehave regarding this matter however it is predictable that it will not behave correctly at all anymore.
 
I do not recall changing any major operations or programs that would cause this yet am left with the belief I must have done something as the comp worked fine for so long before.
 
I've tried disabling many programs and devices as well as unplugging all USB devices.
If I run "powercfg /requests" in CMD I return "srvnet - an active remote client has recently sent requests to this machine."
Please help!

Keys to the Problem Computer won't fall asleep and won't keep monitor(s) off.

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Halima S, 
 
Thank you for the reply.
Method 1: I installed all the latest drivers for all my devices with careful attention to the video and network cards a few days ago.
This did not help.
Method 2: I tried this also around the same time a few days ago after reading another forum.
No luck.
Method 3: I have also tried this and did not work, however if it did, as a
solution I would not be too satisfied since I media stream quite often thus requiring my computer to stay awake. 
 
The good news: After uninstalling an intentionally installed keylogger program"Desktop Shark".
The problem SEEMS to be fixed.
Although I have been using the program for almost a year now, I do recall updating the software
with some compatibility trouble about a month ago around the time this problem evolved.
It's been less than a day but so far the computer is performing correctly.
Hopefully this was the cause of the issue and perhaps this info may serve to help someone else. 
 
Thanks again.
Will let you know if problem reoccurs. 
Mike

Run CHKDSK

• Go to the Start button.
• In the Search box, type "cmd" (without quotes) and press Enter.
• At the command prompt, type "chkdsk /r /f" (without quotes) and press Enter.
• Restart your computer.

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