To connect to the internet, I usually configure my PC to use the static IP, the gateway and the DNS provided to me by my ISP and plug in the connector to my NIC. Recently, my NIC stopped working, so I bought a router (Netgear N150 WGR614) and using a USB connector (Netgear WG111v3) to connect my PC to my router. The router to PC connection seems to be fine. Also, the router seems to be connected to the internet (tested by trying to upgrade the router firmware using the router's web interface, and also the "i" light on the router is green).
But I'm unable to access the internet from my PC. I'm on Windows Vista. Am I missing something?
UPDATE: I called up the ISP. They had changed my IP and the gateway's IP was also changed. The internet works now, but I have no idea why the router's firmware upgrade attempt said that "No firmware upgrades available" and the "i" on the router was green when I was using my previous IP.