Linksys

I tried to follow ur instuctions but the wireless network connection says its " Connected, firewalled" its just unable to pull up a working browser page it comes up as Page cannot be displayed, also I tried to uninstall and reinstall the router using the cd provided by linksys, however it also see's it as already connected to the router. It does work when I cable it I just don't understand why it won't allow me to surf when its just using the wireless, do you think it could be a security issue? Its never asked for a password or indenfication however others have tried using the router for other wireless compatable devices and were unable to get online because it refused the password set by the Linksys setup manager. I've tried disableing all of my security systems thinking it was the problem, but its beyond me how to fix it, its been nothing but a headache! Also Its running XP Thank you for your response, and if you can give more advice its very much apprciated! Thanx xx