Ok, it seems like you have it set to be half way between a router and an access point. The diffence is that a router inserts a NAT firewall between your WAN IP and the computers hooked up to it, as well as providing IP address; an access point is an extension of another router and provides more wireless and ethernet connections but allows the primary router to provide all IP addresses and routing functions.
To keep your router as a router you will need to enable dhcp and make sure that your router's LAN IP subnet is different then the Primary router's IP subnet. So if the primary router is 192.168.1.x you need to NOT use the .1, so instead use something like 192.168.6.x.
In router mode itl prevent you from accessing other computers on the network but also prevent them from accessing yours, the other downside is that any QoS, port forwarding or other router settings will have to be set on both routers.
To make it an access point you will need to keep dhcp dissabled as well as dissable the NAT and SPI firewalls. You will need to set the router IP to an address on the same subnet as the primary router, so if the primary router's network IP is 192.168.1.1 then you will need to set your routers IP to 192.168.1.2 with he same subnet as the primary router, and the gateway address to the 192.168.1.1 or whatever the IP of the primary router is. You will also then need to plug the ethernet cable from the primary router into a LAN port on your router and NOT the WAN port.
I know I hit you with a lot of information and networking terms there, tell me if you want it to be a router or access point and I can guide you a little better from there.