Already 2 weeks I am fighting with an error as above. Software is running on tomcat8(debian 8) on orange pi one hardware. Catalina.out says:
22:27:25.057 [http-nio-8080-exec-16] ERROR o.a.g.w.GuacamoleWebSocketTunnelEndpoint - Creation of WebSocket tunnel to guacd failed: Connection to guacd timed o
Any ideas what is the cause?