I can access nuget.org through my browser but I cannot access az320820.vo.msecnd.net through my browser.
When trying to install/update NuGet packages, I get an error:
Error 4 The remote name could not be resolved: 'az320820.vo.msecnd.net'
I even tried to manually download nupkg files but those too, link to that website which does not work.
What to do?
I also have the problem when I am installing the ArcGIS Runtime .NET package for making 3D maps, but when I am installing java sdk 6.0 my problem is solved. You can check what is your the system requirements for installing NuGet packages on the website then you can install it.
e.g. https://developers.arcgis.com/net/ I am visiting this site and then install my ArcGIS Runtime.