This is an actual joke, this problem from what I can see online has been reported since March of this year. Are they just not going to resolve it now?
Anyway, you kind people here are some less-than-conventional options:
Turn off power saving mode, don't ask, I don't know why either.
Change your home wifi from Public to Private in settings.
Disconnect all ports (chargers included) and hold the power button for a full 60 seconds.
Open MyASUS and install all updates, optional ones too. Same goes for Windows Updates.
Connect an Ethernet Cable (You'll need it for this step ^) and run the windows wifi troubleshooter.
For some reason, the Network Adapter (before it disappears and disconnects you) will revert to an older version. Search for an update by right-clicking on the adapter changes and select "Let me pick from available etc etc etc" and click on the newest driver and next.
Last but not least, what I find myself doing more often than not, getting verbally angry with my computer thats not even a year old. Not virus related as im sure many of you have checked each time you get a Blue Screen and reset or when your wifi vanishes without a hi nor bye. Hoped some of these worked, even if only for a time longer than 15 minutes.