Recently we've started seeing a lot of "Error: Unable to find version 'X' of package 'Y', WARNING: Unable to connect to the remote server" errors in our build environment. It's not like there is no internet connection on build servers
or firewall problems because other parts of the build like cloning repo from GitHub and pulling packages from npm work. These errors are intermittent as only every second/third build fails.
I don't know the internals of NuGet.org, but could it be some sort of requests throttling from the same IP or white/blacklisting mechanism or broken web server in a cluster?
Could you please help?