Knowledge Base Williams Learning Solutions Product

            IT/Systems requirements

            In order to play "Eco Challenge" on your browser, your browser should fulfill the following system requirements:
            1.  Your browser version has to be:
              1. Firefox 52 or newer
              2. Google Chrome 57 or newer
              3. Microsoft Edge 16 or newer
              4. Safari 11 or newer
              5. Open this link to check your browser version
            2.  Firewall: If you protect your school network by allowing only recognized URLs through your firewall and security settings, please add the following domains to all whitelists and security filters: 
            3.  Bandwidth requirement
              1. Minimum download speed - 10 Mbps
              2. Minimum upload speed - 10 Mbps
              3. Open this link to check your bandwidth
            4.  Space requirement
              1. Minimum free space required - 200 MB
              2. Minimum free memory in RAM required - 1 GB
            The browser usually has enough space to perform the action like playing "Eco Challenge". However, if your browser fulfills requirements 1 and 2 but still can't load/play "Eco Challenge", you can clear your browser cache to create more space following the instructions below.


            1.  From the History menu, select Clear Recent History. If the menu bar is hidden, press Alt to make it visible.
            2.  From the Time range to clear: drop-down menu, select the desired range; to clear your entire cache, select Everything.
            3.  Next to "Details", click the down arrow to choose which elements of the history to clear; to clear your entire cache, select all items.
            4.  Click Clear Now.
            5.  Exit/quit all browser windows and re-open the browser.

            Google Chrome

            1.  In the browser bar, enter: chrome://settings/clearBrowserData
            2.  At the top of the "Clear browsing data" window, click Advanced.
            3.  Select the following:
              1. Browsing history
              2. Download history
              3. Cookies and other site data
              4. Cached images and files
              5. From the "Time range" drop-down menu, you can choose the period of time for which you want to clear cached information. To clear your entire cache, select All time.
            4.  Click CLEAR DATA.
            5.  Exit/quit all browser windows and re-open the browser.

            Microsoft Edge

            1.  In the top right, click the Hub icon (looks like star with three horizontal lines).
            2.  Click the History icon (looks like a clock), and then select Clear all history.
            3.  Select Browsing history, then Cookies and saved website data, and then Cached data and files. Click Clear.
            4.  After the "All Clear!" message appears, exit/quit all browser windows and re-open the browser.


            1.  From the Safari menu, select Clear History... or Clear History and Website Data....
            2.  Select the desired time range, and then click Clear History.
            3.  Go to Safari > Quit Safari or press Command-Q to exit the browser completely.
            If you still can't load/play "Eco Challenge" after clearing your browser cache, please contact us at for further assistance.

            Updated: 11 Oct 2019 06:58 PM
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