Even if not it would be useful if you could share your output from the command
Code:
softwareupdate --list
If you're affected by the problem it will say something like:
Code:
Software Update Tool
Finding available software
The operation couldn’t be completed. (NSURLErrorDomain error -1012.)
I am aware of a growing number of users across the country who are having this problem that prevents macOS updates from working, but I'm having a nightmare trying to get through to somebody useful at Virgin Media who can look in to this. I really don't have time to be going through steps like rebooting my computer and my SuperHub when I know it's not isolated to me. I've asked a number of Mac users to test this and so far every Virgin customer has the problem, and no customer of other ISPs has the problem.