AWS EC2: SSH works but I am unable to use my VNC

I am running a Linux EC2 instance with TigerVNC viewer. This has worked for about six months until my EC2 instance recorded an error and I had to stop it from the Instance Console. I have restarted, but am now unable to access the GUI. SSH access from the console works and I can run commands in the terminal. I have checked the 'vncserver :1' command and am told that a VNC server is running, but when I open TigerVNC it crashes before asking for a password with the terminal error 'channel 3: open failed: connect failed: Connection refused'. Has anyone encountered a similar problem?

https://stackoverflow.com/questions/65963596/aws-ec2-ssh-works-but-i-am-unable-to-use-my-vnc January 30, 2021 at 08:55AM