M5-581T Windows 8.1 sleep/power off issues

I've had the M5-581T for 1yr and has worked fine. Now I have followed the directions for the suggested 8.1 upgrade.

Now I've been noticing intermittant events where I close the lip and the system goes to sleep. But when I choose to open the lid and wake back up the system actually turns on from a fresh boot thus losing anything I had open when the lid was closed to sleep. This seems to happen most when the unit is not plugged in but not all the time.

Also the unit will sometimes wake back up but not have any WIFI access and state that the WIFI is turned off w/o the option to turn it back on. This is only fixed by closing all and restarting.

What BIOS/Drivers need to be installed to fix this or is there a Battery issue?

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Clyde

Not sure what drivers exactly you would need, but I would start with the WIFI and video driver. You can get drivers from the Acer support site. Problem may just be with 8.1. You could go back to Win 8, or wait and see if a future Windows update fixes it, if drivers don't work.