Hi, I'm a complete noob. I want to use my RT-N66U as a repeater to my Netgear Nighthawk AC1900 router that's on Giggle Fiber internet. I've tried researching for 2 days but I don't understand any of the words I'm reading. Can anyone give me a simple step by step on how to turn my Asus router into a repeater? Basically my problems are how to make my Asus see my Nighthawk router. Usually there's a scan button where it scans all available wifi spots to choose from but I don't see it anywhere on the interface. My phone can see the Asus when it's turned on. Can anyone help?