Until you get the router set up and working, try giving your Local Area Connection a fixed IP address in the same Subnet as the router. For example:
IP address - 192.168.0.5
Subnet Mask - 255.255.255.0
Default Gateway - 192.168.0.1 (the router's IP address)
DNS Server - 192.168.0.1 (the router's IP address)
It may be that your adapter isn't getting its IP address by DHCP from the router and this is preventing you from opening its configuration pages.