I have to flap my macbook's wifi and/or reboot several times a day. I can't find out how to fix it from their joke of online support - just a load of people bit

I have to flap my macbook's wifi and/or reboot several times a day. I can't find out how to fix it from their joke of online support - just a load of people bitching about the same thing and deleting the plist file, IIRC, which is a temporary fix. Very frustrating.