Interactive Flat Panels
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    • #34639
      Paul BuzzellPaul Buzzell


      When I attempt to use the Screen Share feature on the Promethean Board I am getting a message indicating that the “RTC Failed.” I have made sure both my devices are on wifi, that both my devices are up to date, and that the date and time are correct. Nothing seems to fix this issue. Can you please advise how to get this issue fixed so that I can use screen share? Thank you.

    • #34727
      Karen PrometheanKaren Promethean

      Hello Paul,

      Thank you for your post.

      Please run the Web RTC Troubleshooter to determine what is causing it to stop on the network (

      Please also refer to the following network considerations to ensure the needed URLs are allowed and ports are open:

      Let us know if you have any questions or if the issue persists – we are happy to assist.

      Kind Regards,


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