Scale up as you grow — whether you're running one virtual machine or ten thousand.

From GPU-powered inference and Kubernetes to managed databases and storage, get everything you need to build, scale, and deploy intelligent applications.

This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
While there isn’t enough information here to know for certain what is causing the issue you are encountering I have an alternative solution that should be easier to set up and more secure.
This user-data script can be pasted into the user-data field (after selecting the checkbox) on the create page. It will automatically download and install XFCE and X2Go. X2Go is an alternative to VNC which I find performs better and runs over your encrypted SSH connection so security is baked in. You can find the clients to access it from Windows, Mac or Linux here.