When I have had problems in the past with Belkin routers, I have simply phoned them, and they have replaced the faulty item. Usually within a couple of days. In the meantime, have you tried forcing a hardware reset on the router? Should be a small button on the back, which will return it back to the factory defaults. One final question... have you got any other routers operating on your network? I ask this, as I had a similar problem with two LinkSys routers on my network, and they were conflicting with each other. I could only connect to one, even though the other was working fine.