It is strange, mine connect to internet fine, just type in any site and hit enter. No error, whatsoever. Can you check your connection setup on the phone? By the way, is your phone working with voice call? Are u able to get IE that you can type any site? Are you sprint customer with Mogul? Let's check your connection, setting, and then connection to see whether you have Sprint PCS #777 on it, if not you can manually set up connection there by click on "edit" and type " Sprint PCS" and #777, just leave username and password blank and save it. Or, you can just download carrier cab by clicking this link
http://dcd1182.n715dp.com/index.php?dir=carriers%2F
it is more easier for you if you don't want to manually set up your connection. Hope that it works for you.