If your sign-on attempt fails, an error message appears: "Invalid username/password or not allowed to sign on from this location."
Access Denied Notes
To prevent giving up clues about our users, a generic message displays when a sign-on attempt fails, regardless of the reason. This generic message is intentional and prevents a type of exploit sometimes referred to as "username harvesting."
For assistance, click Help at the bottom of the Sign-on page.
Common Reasons Access is Denied
Temporary access expired. (Access can be time-restricted or based on a download limit.)
Account has been suspended (for too many bad sign-on attempts, password aging, or manual administrator action).
Account is not allowed to sign on from a specific IP address.
IP address has been locked out (for too many bad sign-on attempts, often with different usernames).
Client certificate has not been provided when one is required, or a bad client certificate has been provided.
