401: Unauthorized
URL: /Error/HttpError401?operation=/default.htm
Date: 06/14/2021 06:18 PM

Cause:

The 401 Unauthorized error is an HTTP status code that means the page you were trying to access cannot be loaded until you first log on with a valid user ID and password. If you have already logged on and received the 401 Unauthorized error, it means that the credentials you entered were invalid to access this specific web page.

Resolution:

  1. It's possible that the 401 Unauthorized error appeared because the URL was typed wrong or the link that was clicked on points to the wrong URL - one that is for authorized users only.
  2. If you're sure the URL is valid, visit the website's main page and look for a link that says Login or Secure Access. Enter your credentials here and then try the page again.
  3. If you're sure the URL is valid, and still having technical difficulties accessing the specific web page, please contact us at [email protected]

Helpful Links:

Home Page
Acceleron Sign In