I really don't know where the correct spot is to post my question but I think it pertains to OS X on my MacBook. First of all, I have a late 2013 retina MacBook Pro that is currently running OS X El Capitan 10.11.4. The issue that I am experiencing is that if I leave my Mac on for about a week and use it off and on and leave it in sleep mode when not in use, I run into issues with wifi. My wifi still works but it is probably twice as slow or more and takes forever to load anything. Everything else is fine then with my Mac except for anything that uses the Internet such as loading webpages in Safari or opening the iTunes Store. I then have to restart my Mac and then the issue resolves itself. When I got my Mac, it came with OS X Mavericks and I didn't experience this issue until around August of last year. I was experiencing this issue under Mavericks and it was a lot worse. If I put my Mac to sleep, and woke it up it would take forever to load anything that used the internet. I would have to restart my Mac multiple times per day under Mavericks. I then decided to upgrade to El Capitan and see if it solved my issue because my Mac was getting to the point of being unusable because I would have to restart all the time. I think when I first upgraded, it was just like now where after a week of being on the wifi is really slow. I usually close my Mac when not in use and it is in sleep mode during that time. I know maybe I should restart my Mac about every week or even more but why would this issue with wifi be happening? I have previously run an Apple hardware test on my Mac during startup and it came up with no problems so there shouldn't be a problem then with the wifi card. FYI: I don't have any Apple Stores near me and I bought my Mac in May 2014 at BestBuy.