The remote name could not be resolved: 'api.nuget.org'

I am having problem installing a Nuget package using the Package Manager Console in Visual Studio 2017. The following if the full details of the error:

install-package : Unable to load the service index for source https://api.nuget.org/v3/index.json.  An error occurred while sending the request.  The remote name could not be resolved: 'api.nuget.org'At line:1 char:1+ install-package selenium.webdriver -version 3.0.0+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+ CategoryInfo          : NotSpecified: (:) [Install-Package], Exception+ FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PackageManagement.PowerShellCmdlets.InstallPackageCommand

I already checked the status of each Nuget servers here and all seem operational. I also found similar posts but most them are old enough. I even tried to reset my router but still the same.

Hope someone helps me. I already emailed their support but did not get a reply yet.