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How to Troubleshoot and Fix Issue Playing Lesson Videos on Kubicle

Why it happens: Most video playback errors are caused by VPNs, network firewalls, or browser extensions blocking the video stream.

Quick Fixes:

  • Kill the VPN: Disconnect any VPN and refresh.

  • Incognito Mode: Open the link in a private window to bypass ad-blockers or bad cache.

  • Swap Browsers: If using Safari or an older version of Edge, try Chrome or Firefox.

  • Switch Networks: If on a strict work Wi-Fi, try a guest network or personal hotspot.

When to escalate: If your VPN is off and still experiencing issues, your IT team may need to "whitelist" these domains:

  • *.mux.com

  • *.litix.io
  • *.kubicle.com

If none of the steps above resolve your issues please click here to raise a support ticket.