SOLUTION: WMM power management not working with Realtek Wifi drivers (W8.1x64)

I'm posting this solution for anybody who might want a fix for this.
if you run powercfg.exe -energy in Windows 8.1 and view the report it makes, you will see a warning in the log that says:
"Wireless Access Point does not support WMM Powersave mode"
I do not see this warning on another laptop I have (Samsung) which uses an Intel 6230 wifi card.  So I did some digging.
At first, I thought it was the router (ASUS RT-AC68P)  but realized that WMM was enabled on the router.  Since the Samsung notebook didn't have the problem it was obviously driver related.
Unfortunately the drivers supplied by HP and the drivers avaialble as part of "Windows Update" from MS don't address the problem.  Even if you change advanced settings for the wificard from "Performance" to "Wireless" the warning persists.
I wound up doing a clean install of W8.1 Update 1 to rid my PC of bloatware, and in the process fixed the issue with "Wireless Access Point does not support WMM Powersave mode"
The default inbox drives from Microsoft work correctly and allow the router to put the wifi card to sleep when no packets are being transmitted
Recently I went to Windows update and noticed there was an updated driver - I downloded it and the problem came back.
I went to device manager, double clicked the wifi card, went to the driver tab, and selected 'rollback driver'.
Problem is resolved again.
Went back to Windows Update and it showed the realtek driver in the optional tab again - right click on it and "hide update".
Solved.
I have noticed no issues with wifi speeds, but I think the battery *is* lasting longer (only tested for a few days); not by much, but a little.  Wifi speeds are top-notch, no buffering or latency issues with any web streaming or downloading

I doubt it but there's always a possibility of a bad card.  I assume that you've tried multiple routers?  Gone to starbucks and same thing?  See if when you uninstall the drivers if windows will automatically find a driver and give that a shot.  Off hand I can't think of any software related issues with the Wifi as mine has worked fine since day one. 
X220~i5 2520M~8GB~Vertex2~IPS~Win7Prox64~ It's amazing.

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