Class Recommended System Requirements

Check device and environment settings

If video or audio does not play during class, you can check your device and environment settings using the methods below.

When taking classes on the CLASS101 app

1. Does the same error occur when playing other class videos?

2. Does the same error occur after updating the app?

3. Does the same error occur when you turn your device off and on again and play the video?

When taking classes on the CLASS101 website (web)

1. Does the same error occur when playing other class videos?

2. The browser being usedInPrivate modeOr does the same issue occur in other browsers as well?

3. Does the same issue occur after updating the browser?

4. Does the same issue occur when you close all browsers and reopen them to play, or when you turn off the device and turn it back on to play?

Resolving Chrome Browser Related Errors

1. Chrome web browser'sCookie and cache dataPlease delete.

   • In the Chrome address barchrome://settings/clearBrowserDataCopy and enter

   • Full PeriodSet the period and then delete

2. Please update your Chrome web browser to the latest version.

   • In the Chrome address barchrome://settings/helpCopy and enter

   • CurrentlyChrome versionCheck and Update

Additional Solutions

If the above methods do not resolve the issue, please try the additional methods below.

1. If you experience severe buffering in Chrome web browser, disable 'hardware acceleration'.

   • Copy and enter chrome://settings/system in Chrome's address bar

   • Uncheck 'Use hardware acceleration when available'

   • Completely close the browser and restart

2. Please check security programs (including banking and government security programs), Chrome extensions, and firewall.

   • Temporarily disable security programs and restart

   • Copy and enter chrome://extensions in Chrome's address bar

   • Turn off all enabled extensions and restart

Do you need help?

If you are unable to take the class even after following the above instructions, please contact customer service and we will resolve it quickly.

Go to Class Customer Service