set up router wnr200v3 without internet

At the moment I have a laptop controlling a Behringer X32 sound mixer via wired ethernet.

The plan is to use wnr2000v3 to provide wireless access for laptops/phones as well as keeping

the wired laptop. No internet requred or wanted.

Problem is -  when I access router, it won't let me go past the internet/wan settings

One suggestion I've read is -

      from lap top START,RUN,type  http://www.routerlogiin.com/basicsetting.htm

another is -

     type the same thing into web browser

or -

    type ip address followed by /basicsetting 

all of the above suggest various combinations of powering up and connecting

I've tried all of these with no success - either "internet setup screen" or nothing.

Can anyone please help

Cheers Phil