TUNNEL_ERROR while accessing VNC via web

Dear Team, I have 6.2 version of open nebula installed on ubuntu 18.04. The issue is TUNNEL_ERROR while accessing VNC via web. Kindly help to fix this. Attached is the screenshot.

Hi @pinnacle,

Sunstone needs the FireEdge server to use Guacamole for remote connections. You can read more about how to configure in documetation.

You can check if the FireEdge server is up and the log file in the following path: /var/log/one/fireedge.log

Best, Sergio