|You have to read the Users Manual of the router.|
Everything is clearly described in there, so that you should be able to get connected to the internet.
Simply follow the instructions in the manual.
Btw.: The computer itself do not have to authenticate to your ISP, but the router has to.
Therefore, you have to configure the data for authentication in the router.
The original poster should always write the last response !!!
Let us know, if the problem is solved !!!