Generally, this is caused
by an encryption (SSL) problem with your browser. Encryption is required for
authentication to complete. Try another browser if you are unable to correct
the problem with the first browser. Also verify the settings in your browser by
going into Tools à Internet Options and then make changes under the following
tabs and save the changes upon each execution.
General ---> Clear all
Temporary Files, and Cookies
Security ---> Select 'Default Level'
Privacy ---> Select 'Default'
Advanced ---> Select 'Restore Defaults'