systemctl status pveproxy?Is the server running? Can you reach it in a different way, e.g. ping or ssh?
What's the output ofsystemctl status pveproxy?
What exactly means "unable to access", do you see an error message? blank screen? something else? Have you made any changes after the installation?
You already wrote in a different thread, did you try any of the fixes tested there?

We use essential cookies to make this site work, and optional cookies to enhance your experience.