Unable to connect with VNC server with chosen security setting, Unknown Cause

Potential Symptoms

  • Error message when connecting with VNC: "Unable to connect to VNC Server using your chosen security setting. Either upgrade VNC Server to a more recent version from RealVNC, or select a weaker level of encryption."
  • Unable to connect using VNC but able to connect using different computer with VNC Viewer.


  • Product Family: Billboard
  • Product: DB-5000
  • Component: DMP 8000
  • Control System:


  • Unknown.


For Temporary Operation

  • Use different computer with known good VNC Viewer.

KB ID: DD3895468

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