I upgraded to Lion a week or so ago and immediately noticed that while I could connect to my Airport Extreme wi-fi router, Safari would always return a "not connected to the internet" page. If I click on "network diagnostics" and follow the on screen steps, it tells me there are no issues. After a few minutes, I can begin browsing the web. I never drop my connection once I am able to get everything working. The issue returns every time I restart or put the machine to sleep. Yes, I've searched everywhere, but most people are having difficulty staying connected to their router. I'm not. I can ping Google's DNS and get a reply, so I know I'm connected to the internet, but for some reason the apps don't see it. I upgraded to Lion 10.7.1 and that didn't resolve my issue. Thoughts?