[MovedGoalPosts]

I assume you are now trying to connect using an ethernet connection via the router, with the USB completely disconnected.

Please confirm that the ethernet (local area connection) on the computer is enabled (active).

May I suggest you ensure a connection is possible using your computer's ethernet card without the router. This will confirm that the computer is set up OK for a wired connection. We first need to get a wired connection established before any computer can be setup wireless as a wired connection to the router is needed to configure wireless. Power everything modem, router, computers off. Unplug all USB and ethernet leads from the modem and PC. Connect a single ethernet lead direct between the modem and the computer. Power modem let settle, power PC. You should now be able to view the internet.

If you cannot still get access we need to know exactly what modem you have, and what lights are lit on it when you have it powered up and connected as in the paragraph above.