hehe. Yes it all PCs in the house are having the same problems. I have had friend's notebooks hooked up to the network and same deal. I'll try the firmware update
Then it's a problem with your network configuration (router) IM thinking you have your cable modem set to DHCP mode and so is your linksys router, there fore, causing a conflict.
Also, you need to isolate the router from the network and use a direct connection from the cable modem to the back of one computer then try to get online.... if the one system can get online then you know for sure it's NOT your ISP and more to do with a network configuration.
Is this a resdential account or business account through RoadRunner?