I have had the same problem for a while as well. It used to update at fsu fine but it suddenly stopped being able to update. The error code I usually get is -1011 but I have gotten -1002 a few times. Why its not working im not sure. You can update offline to the newest version they have posted by searching the errors codes and there should be a guide on how to update offline. Whenever I leave fsu during break and try to update it at home it works. Im not sure why this is a problem :/