Every time I start up my MacBook Pro, my WiFi symbol greyed out, and I can’t connect to WiFi, if I click on the WiFi symbol, it doesn’t respond. When I go to settings, then network preferences doesn’t respond either. I have to wait around 5 min after startup for the network preference and WiFi symbol to respond. It’s quit annoying because my MacBook has unexpected restarts because of a problem. Is there any solution to this? Any help would be appreciated.