I had spotted this thread before. I too have been having problems for some
time. I've gone through a similar - try something, it seems to work, then a
while later I discover I still have the problem.
My latest change again has worked for a few weeks but I can't be certain yet.
I switched my router to 802.11g only instead of 802.11n . A lot of the
consumer devices out there despite claiming 802.11n are in fact built around
802.11n draft chips. From what I can gather there were several drafts, not
all of then work well with each other.
I decided that was something to try after hearing that W$8 similarly has lots
of intermittent WiFi problems. I reasoned, after having tried so many
things, that the answer might be something that was common between the two.
YMMV
