What should I do if my PC cannot connect to the router after setup?

First check that the LAN port LEDs on both the router and your PC's adapter are lit, confirming a physical connection. Then verify that your PC's IP address is within the range 192.168.0.2 to 192.168.0.254 with a gateway of 192.168.0.1. Also note that if your modem's LAN IP is 192.168.0.x, the router may have automatically switched its LAN IP to 192.168.1.1 to avoid conflict. (Page 10)