The 401 Unauthorized error is an HTTP status code that indicates that the page you are trying to access cannot be loaded until you first log in with a valid user ID and password.

If you just logged in and get the error 401 Unauthorized, it means that the credentials you entered were invalid for some reason.

Check for errors in the URL. It is possible that the 401 Unauthorized error appeared because the URL was mistyped or the selected link is pointing to the wrong URL, a URL that is for authorized users only.

If you are certain that the URL is valid, visit the main page of the website and look for a link that says Login or Secure Access. Enter your login information there and try the page again.