So I just received my iMac yesterday. It is very slow/spotty with the internet. I used wifi and connected it straight into the computer, but sometimes it will pull up a site and other times it won't. The connection itself was fine. Let's say I try to open Gmail it won't load. If I keep attempting to enter the website over and over or exit the browser and try again it will finally load the page, but all the while this is happening I can load other pages just fine while the other pages are struggling. I have run speed tests while pages are struggling to open/load at all and I am getting over 400mb/s. This is my first Mac.. Any help?