This article briefly explains the likely cause and resolution of the error below, if it occurs while logging into the CMS or any web application.

Cause

• One of the most common reasons you might experience a 401 error is that your browser's cache and cookies are out of date, preventing the authorization from successfully going through. If your browser isn't using the valid authentication credentials, the server will reject the request.

Resolution

• Check to confirm that there is no spelling error in the site URL.
• Clear browser's cache.

How to clear browser's cache on Windows

• Google Chrome
• Microsoft Edge