network I have internet , But web pages and downloads arent connecting to it.

I have a inspiron 1545 running windows 7 home premium   .   I have IE 9 and google chrome. IE goes on line with no problems, google chrome says theres no internet connection.  I cant download from either of them, it says theres no internet connection.   i have a wireless router, a dell wireless 1397 wlan mini card.   when using the cards utility i get a message, the wireless router/ap for your net work is working. you will not be able to connect ton internet. although you ma haey be able to connect to your local network. contact your local administrator or installer for assistance.   I have internet, partially but i need to download real bad.  Any help id apopreciate it.   thankyou