Blocked error message appears

When you enter the passcode on the Sign In page, a Blocked. You couldn't be authenticated. Server error. message appears.

Jeppesen Distribution Manager Pro (JDM Pro) shows the following error message:
Blocked error message

Procedure

  1. Close the page.
  2. Choose one of the following options.
    OptionDescription
    Incognito or private mode Open a new browser tab in the incognito or private mode.
    Browser cache Clear the cache of your browser.
    New browser Open a new browser. For example, if you use Google Chrome, try Mozilla Firefox.
  3. Enter the following URL:
  4. Sign in to JDM Pro.