Which port is used by NuGet while downloading package through Visual Studio

Question

I am using VS 2010 (Package Manager Console) to download NuGet (2.5.40416.9020/Latest) packages. It uses URL https://nuget.org/api/v2/. It gives me error as below.

Install-Package : An error occurred while loading packages from'https://nuget.org/api/v2/': The remote name could not be resolved: 'nuget.org'
At line:1 char:16
+ Install-Package <<<<  Rx-Main
    + CategoryInfo          : NotSpecified: (:) [Install-Package], InvalidOperationException
    + FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PowerShell.Commands.InstallPackageCommand

But when i access the same URL via browser then i am able to browse the site. I am on corporate network so firewall might block the port (Other than 80 and 443).

So which port is used by NuGet while downloading packages via Package Manager Console (VS 2010)?

Answer 1

https://nuget.org/api/v2/ means port 443 (the standard port for HTTPS)

If you're on a corporate network, port 80 and 443 are usually bounced through a proxy server.

Most likely, NuGet is not using your proxy settings for some reason, so it cannot find the proxy server and are stopped by the corporate firewall.