My laptop can't connect to my 5ghz Wi-Fi?

So i bought a router the linksys ea6300 and my laptop can't find the 5ghz network, however my iphone 5 can. I was looking around the internet and saw these wireless adapters. Lets say i buy a Wi-Fi adapter thats "ac" for my laptop would that work? Or any other ideas? I want my laptop to have fast internet like my iphone. My latop also supports the n network… Help!

Yeah, your laptops internal Wi-Fi can do only 2,4Ghz networks. Either you need to forward your 5Ghz signal to 2,4Ghz trough another router, or get special 5Ghz receiver for your laptop.

All you need to do it to change your Wi-Fi broadcasting channel. Open up your router's setup by entering the default gateway IP, enter username password if prompted ->go to Wi-Fi or Wireless Lan setting and make sure that broadcasting is b/g/n mixed mode, then check what broadcasting channel is selected starting from 1 to 11/13, in case of extreme start or end make in middle like 6 or 7 and in case of any middle number like 6 to 8 make it either 10 or 3. By changing the broadcasting channel shall hopefully stop any interference with other frequencies.