Hi there, When I switch my mac's wifi on, it connects to the internet automatically at first. Roughly five minutes later the Wifi stops working and I have to go into diagnostics to run the assistance tool. It shows that the ISP has failed - I click continue, continue, continue and then it says that it all appears to be working correctly. This whole process then repeats itself every 5 minutes. However, my iPhone 5s stays connected to the wifi without a problem. Only happens on my macbook pro. Anyone have any suggestions on fixing this issue. It is rather annoying.