Have you tried to make connection using a handset?
When you will try to connect to router using handset, it will ask for password, if the connection is not established, it means, router is not configured properly.
If you can access the internet through handset, it means your card is not able to make connection with router, it doesn't mean your card is damaged. It might be you have not configured it properly.
Although the router company provides assistance and they do not leave you in middle of the problem.
Have you asked for the help?
Take a look here too.