If the videos are playing on your computer, but not for your students, this is likely a permissions issue. 

To resolve it, your IT department will need to whitelist these sites to allow student access:
​mosamack.com
​https://mosamack-uploads-production.s3.amazonaws.com
​https://s3.amazonaws.com/
*.wistia.com
​embedwistia-a.akamaihd.net
​fast.wistia.net

embed-fastly.wistia.com
​https://video-messages.intercomcdn.com

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