Wifi losing power and disconnecting

Hi,
My mid-2014 MacBook Pro keeps disconnecting from wifi intermittently, whether in use or in stand by. I reset the wifi and it reconnects after some time searching. The errors in the wifi.log each time this happens are below. I suspect there's a problem with the wifi adapter circuit so it's actually losing power, but I was wondering if anyone else had this issue and found a solution that didn't require a replacing the hardware?
Sat Apr 18 18:57:10.509 <airportd[54]> _handleLinkEvent: Got an error trying to query WiFi for power. Resetting state variables.
Sat Apr 18 18:57:10.511 <kernel> AWDL Sync Enabled 0
Sat Apr 18 18:57:12.582 <kernel> AWDL Sync Enabled 0
Sat Apr 18 18:57:22.671 <kernel> AWDL Sync Enabled 0
Sat Apr 18 18:57:23.030 <kernel> AWDL Sync Enabled 0
Sat Apr 18 18:57:32.932 <kernel> AWDL Sync Enabled 0
Sat Apr 18 18:57:33.483 <kernel> AWDL Sync Enabled 0
Sat Apr 18 20:43:35.865 <kernel> wl0: leaveModulePoweredForOffloads: Wi-Fi will turn off.
Sat Apr 18 20:43:35.879 <airportd[54]> _handleLinkEvent: WiFi is not powered. Resetting state variables.

Wifi problems seem to crop up a lot on here and unfortunately there doesn't seem to be a 'one fix' solution.
However, sometimes any one of the following can help although, unfortunately, not always. In no particular order:
Check wifi security - if it's WEP change it to WPA or WPA2 (preferably, as it's more secure)
Change the wifi channel on the router
Create a new Network Location: http://support.apple.com/kb/HT5289
Reboot the router
Also take a look at this link and the links within the article for other ideas. They mainly reference Lion, but still seem to be relevant to Mountain Lion:
http://osxdaily.com/2011/11/06/lion-wi-fi-problems-solution-mac/?utm_source=feed burner&utm_medium=feed&utm_campaign=Feed%3A+osxdaily+%28OS+X+Daily%29&utm_conte n t=FaceBook
...and this link:
http://osxdaily.com/2012/11/30/resolving-stubborn-wi-fi-connection-problems-in-m ac-os-x/

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