Help with ASUS RT-AC68U router

Hello all,

First of all, I just want to share that I am a amateur when it comes to networking and router setup. So please forgive me if I asked questions that are silly or irrelevant.

So let me begin. I got this router, RT-AC68U when I signed up for my internet plan. I read some reviews and it seems like a good router to have. My previous router is a 6 years old Aztech router and it served me well.

So I opened up my new RT-AC68U and set it up. I setup the 2 types of wireless, 2.4Ghz and...

Help with ASUS RT-AC68U router