Hello - 2 days ago out of nowhere, my internet connection stopped working. Safari, ichat, google notifier, firefox, all nothing. Safari tries to load for a minute than says no response from the server the webpage is located at. It does this for every website. my cable modem is showing all signs are good. solid cable and data light is green. Router is working fine and I even tried to hook the computer up to the cable modem directly and same thing. This happens with a hard wired connection and airport. I have logged into windows and osx on my imac and same thing. says internet is connected and working fine with great signal, but anything that needs to be connected does not work. Called comcast and they said everything looks good on their end. Ive done the zap pram repair fsk all that. Still says server where webpage is located has no response. help! Please?