Hi, you haven't got the router setup with an WEP encryption key have you. Otherwise, you have to go through the manual setup and follow the instructions on screen, by entering what they want you to enter, and also, you ain't got a pairing mode on the router have you, and is the wireless in the router or a USB adaptor.
More info on the router and wireless access point if it is seperate and not a wireless router would be helpful, as there is not enough info to go on there. Also check any firewalls setup on the router, as this could block access as well.
Anthony