Answer ID 4100
GEFORCE EXPERIENCE IS UNABLE TO DOWNLOAD DRIVERS, AND RETURNS AN "UNABLE TO CONNECT TO NVIDIA SERVER" ERROR.
If you are running a version of GeForce Experience client older than 2.5.x.x, then manually update to or install the latest version. You can download the latest GeForce Experience client from the geforce.com website at: http://www.geforce.com/geforce-experience