arkie, to access the router settings a browser is used. I have a Linksys router and put http://192.168.1.1/ in the browser address field. Then I'm prompted for ID and PW. Default was to leave ID blank and use admin for PW. [I've changed this since].
This info came from the router manual. If you lack a manual, try finding it online. If a router is present, one needs to know how to access it in case a setting needs changing [it's also educational]