I've had my Mac for 3 years and never had a problem with Airport Express. If I did, I would usually turn it off and then on again and it solved the problem. The last two weeks I've been using a wi-fi hotspot near my home until I get a proper internet connection at home. Suddenly, my internet stopped working. The airport recognzies the link and still connects but the internet page says i'm not connected to the internet. I've tried using diagnostics and it says it can't fix my problem. In diagnostics, the first 3-4 lights turn on, but the last two are either yellow or red. I've changed the time to make sure it was correct, I've re-started the computer several times and it still doesn't work. I don't know what it is that is not working. The airport recognizes the signal, yet I get no internet connection. And I haven't downloaded anything recently. Please help!