I have a 13-inch, Late 2009 MacBook with 10.11.15 OS X El Capitan loaded in. A 2.26 GHz Intel Core 2 Duo with 8 GB of Memory. I have been having wifi problems where it shuts itself off and I am forced to reset the NVRAM just to have wifi back again. Just recently, it has been shutting off as I am downloading games on Steam. This problem has been happening since February and I want to figure out how to fix this. I have attached some error logs that I believe might have something. If there's any other information that is needed to help you help me figure out this problem I will try to get it to you.