VNC Viewer (from RealVNC) closes after connecting to VNC server

The VNC Viewer from RealVNC uses the "ColorLevel" pal8, which is not supported by most VNC servers.
In order to be able to connect successfully, please proceed as follows:
  • Open the RealVNC options menu
  • Click "Advanced options" in the bottom left corner
  • Click on the "Expert" tab
  • Change the "ColorLevel" value to fullrgb332 or rgb565
You should be able to successfully connect now ;-)

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