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Getting an 'Authentication Expired' Error and Clearing Your Cache and Cookies

Getting an 'Authentication Expired' Error

Are you seeing the following message?

When signing into Blackboard, some users report getting an 'authentication expired' error message (see picture below). The error message is preventing users from logging into Blackboard. Even when the user clicks “Return to Login Page” and attempts to sign in again, the error reappears.

image of blackboard authentication expired error

Here's how you can Address the issue:

  • If you receive this error message, please take the following steps to resolve it:
  • Clear your browser’s cache and cookies - Please see the "Clearing Browser Cache and Cookies" section below
  • Log out of Access Illinois Tech
  • Close your browser
  • Reopen your browser
  • Log in to Access Illinois Tech and navigate to Blackboard

Clearing Cache and Cookies

To help deal with the difficulties some of our community members are experiencing logging into Blackboard following the deployment of Phase 2 of Access Illinois Tech, you will need to clear your web browser's cache and cookies, close the browser, and then reopen it.

Below you will find step-by-step instructions on how to do this based upon which mobile and desktop browsers you are using when you attempt to log in.

MOBILE BROWSERS

Android

Chrome for Android

  • Tap Chrome Menu > Settings.
  • Tap Privacy and Security.
  • Tap Clear browsing data.
  • Tap the Advanced tab.
  • From the "Time Range" drop-down menu, select All Time.
  • Check Browsing history, Cookies and site data, Cached images and files, and site settings.
  • Tap Clear Data.
  • Exit/quit all browser windows and then reopen the browser.

Other Browsers for Android

  • Go to Settings and choose Apps or Application Manager.
  • Swipe to the All tab.
  • In the list of installed apps, find and tap your web browser.
  • Tap Clear Data and then Clear Cache.
  • Exit/quit all browser windows and reopen the browser.

iOS

Safari for iOS

  • Open your Settings app.
  • Tap Safari.
  • Tap Clear History and Website Data and Confirm.
  • Exit/quit all browser windows and reopen the browser.

Chrome for iOS

  • Click Chrome Menu > Settings.
  • Click Privacy and security.
  • Click Clear Browsing Data.
  • Click the Advanced tab.
  • From the "Time Range" drop-down menu, select All Time.
  • Check Browsing history, Download history, Cookies and other site data, Cached images and files, Site Settings.
  • Click Clear Data.
  • Exit/quit all browser windows and then reopen the browser.

DESKTOP BROWSERS

Chrome

  • Click Chrome Menu > Settings.
  • Click Privacy and security.
  • Click the Advanced tab
  • From the "Time Range" drop-down menu, select All Time.
  • Check Browsing history, Download history, Cookies and other site data, Cached images and files and Site Settings.
  • Tap Clear Browsing Data.
  • Exit/quit all browser windows and then reopen the browser.

Firefox

  • From the History Menu, select Clear Recent History. If the menu bar is hidden, press Alt to make it visible.
  • From the Time Range to Clear drop-down menu, select the desired range; to clear your entire cache, select Everything.
  • Next to Details, click the down arrow to choose which elements of the history to clear; to clear your entire cache, select all items.
  • Click Clear Now.
  • Exit/quit all browser windows and reopen the browser.

Microsoft Edge

  • In the top right corner of the screen, click the Hub icon (looks like star with three horizontal lines).
  • Click the History icon (looks like a clock), and then select Clear All History.
  • Select Browsing History, then Cookies and Saved Website Data, and then Cached Data and Files.
  • Click Clear.
  • After the "All Clear!" message appears, exit/quit all browser windows and reopen the browser.

Internet Explorer 11

(Note: On January 12, 2016, Microsoft ended support for Internet Explorer versions prior to version 11. OTS strongly recommends that you upgrade to a new operating system if your current system does not support Internet Explorer 11.)

  • Select Tools > Safety > Delete browsing history....If the menu bar is hidden, press Alt to make it visible.
  • Deselect Preserve Favorites Website Data, and select:
  • Temporary Internet Files or Temporary Internet Files and Website Files;
  • Cookies or Cookies and Website Data; and
  • History.
  • Click Delete. You will see a confirmation at the bottom of the window when the process is complete.
  • Exit/quit all browser windows and reopen the browser.

Opera

  • From the Opera menu, select Settings, then Privacy & Security, and then Clear Browsing Data....
  • In the dialog box that opens, from the Obliterate the Following Items from the drop-down menu, select The Beginning of Time.
  • Select the following:
    • Browsing History;
    • Download History;
    • Cookies and Other Site Data;
    • Cached Images and Files.
  • Click Clear Browsing Data.
  • Exit/quit all browser windows and reopen the browser.

Safari 8 and later

  • From the Safari menu, select Clear History... or Clear History and Website Data....
  • Select the desired time range, and then click Clear History.
  • Go to Safari > Quit Safari or press Command-Q to exit the browser completely.

NOTES

  • Clearing your web browser's cache, cookies, and history may remove some data that you wish to keep.
  • For desktop browsers, to quickly open menus used to clear your cache, cookies, and history, ensure that the browser is open and selected, and press Ctrl-Shift-Delete (Windows) or Command-Shift-Delete (Mac). If this doesn't work, follow the appropriate instructions below.
  • If the instructions below don't exactly match what you see, you may need to update your web browser to the latest version.
  • If you don't see instructions below for your specific version or browser, search your browser's Help menu for "clear cache." If you're unsure what browser version you're using, select About [browser name] from the Help menu or your browser's menu. In Internet Explorer and Firefox, if you don't see the menu bar, press Alt.

About Cache, Cookies, and History

Clearing your web browser's cache, cookies, and history may remove data such as the following:

  • Saved passwords;
  • Address bar predictions; and
  • Shopping cart contents, etc.

While you should clear your web browser's cache, cookies, and history periodically in order to prevent or resolve performance problems, you may wish to record some of your saved information first.

For information about your web browser's cache, cookies, and history, click on the links below to get to the relevant Wikipedia pages:

Troubleshooting Alternatives

If you need to clear your cache, cookies, and history for troubleshooting purposes, but aren't yet prepared to lose the above-mentioned content, you may wish to consider using a private browsing window in your preferred browser as a temporary solution. For instructions on how to do this, please click on the applicable below-listed link: