This started happening a few months back - maybe after an update?? It has been so frustrating. I've tried searching numerous times on google and still can't find a solution to this.. Since a few months ago, I would notice that the wifi on this laptop would suddenly be incredibly slow. Youtube videos would take forever to buffer and webpages would take forever to load. Then after restarting my laptop, everything was back to normal and was really fast. However, this happens EVERYDAY. I don't turn off my laptop - I don't think anyone does or has to. After it sleeps, I open it and 50% of the time, the wifi is all messed up and I have to restart it. I've also noticed a big lag burst when opening my laptop to log in. This never happened before. Before when I would open my macbook, everything would be super quick and I would be logged in in 3 seconds. Now whenever I open my laptop, 100% of the time, it just freezes for about 5 seconds. If I try and type my password, nothing. Then after 5 seconds, my password will be inputted but usually it would be messed up and I'd have to redo it. What's going on? This is my first ever macbook and I wasn't expecting these problems from this kind of laptop. And I really wouldn't want to go back to using a PC. I would call apple customer service but my technical support already expired. What would a genius bar visit do?