alright gents... s2u2 uninstalled... seems this was causing the problem.
Possible solution:
S2U2 power issue in
FAQ:
Quote:
Q. Some of my device's background jobs (like email sync or bluetooth connection) stopped unexpectedly when S2U2 is running?
A. Try to enable NoPowerSuspend.
Q. What is NoPowerSuspend?
A. There is a few options in S2U2 to set when to suspend your device's power. If NoPowerSuspend is set to 1, these options will all be disabled.
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The HKCU\Software\A_C\S2U2 OffLCD and BlankLCD values may be worth a look as well:
Quote:
OffLCD=17 (x seconds after the backlight is off, device will be turned off; minimum is 5 seconds; 0 to disable)
BlankScreen=0 (when OffLCD is executed, 1 means do not turn off the device but only turn off the LCD)
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[update]
Setting the above settings:
NoPowerSuspend = 1
OffLCD = 0
BlackScreen = 1
Solved the problem!