Post some pics of your setup. How the Dnr and router are connected.
You are able to access the router web pages?
Setup is as straight forward as possible.
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Are you sure you have the right power adapters in the right devices?
Asus has used both right angle and straight. My RT-N65R uses a straight, my newer RT-AC3200 uses a right angle.
The DNR 202L I have here uses a straight plug. (I think we had discussion here were the DNR202L also had a right angle plug also, maybe h/w A/B revision.)
Both of my router eletrical wires are wrapped in a single casing. My DNR202l is not, it's in 2 separate strands combined, like the one coming out of your router, and it has white dash markings on it. It looks like almost the same wire on each of your devices.