Basically. Plug the Utp cable from your modem to the router. (Straight cable)
Then configure your WAN port as if it was your pc last time connected stand alone, DNS, PPOE . Configure your LAN as a private IP 192.x.x.x 255.255.255.0 etc... DHCP or static.
Then configure your PC/Laptop according to what you set in the LAN portion of your router. dhcp or static route. done..