Given the recommendation of router will go for Asus RT-N12D1. am a complete noob in these. when I get these router, it would not be easy as plug and play right ?

can someone spend sometime PLEASEEE...... step by step guide.

1. plug out old one, plug in new one according to the point.
2. can switch on already.
3.
4.

I think one need a pc to do something, IP address or log in to Asus network... that is where I start to get lost. Do one need to log in to my UNIFI account to perform this change as I dunno the login id/password to unifi. I know the password to access internet from pc/ipad but not unifi id/password.

Appreciate all help.

thanks so much in advance.