It sounds like the McAfee firewall is blocking your access.
If you still cannot connect, try an ethernet cable to the Linksys router and see if you have a connection.
If you have a connection to the Linksys router, try updating the firmware and Broadcast SSID. Use WPA security.
Can anybody give me any advice at all on what to do, this is my situation.
I bought a Linksys wireless router about 4 months ago and it worked fine, i used it to get the internet on my laptop. But then, I think it was when I installed McAfee, that the internet stopped working on my laptop. I tryed taking McAffe off and putting it back on, i tryed resetting the router, i tryed repairing the coneections and checking the settings but i have no idea what to do now.
The router is a "Linksys Wireless-G Broadband router Model-WRT54G"
Any help would be very helpfull.