Restore fails with "An error occurred while sending the request." for some packages

Restore of the package “NETStandard.Library” (and others) fails with:

error: Failed to download package from 'https://dotnet.myget.org/F/dotnet-core/api/v3/flatcontainer/netstandard.library/1.0.0-rc2-23811/netstandard.library.1.0.0-rc2-23811.nupkg'.
error: An error occurred while sending the request.
error:   A connection with the server could not be established
error: Unable to load package 'NETStandard.Library'.
trace: System.AggregateException: One or more errors occurred. (Unable to load package 'NETStandard.Library'.) ---> 
NuGet.Protocol.Core.Types.FatalProtocolException: Unable to load package 'NETStandard.Library'.
trace:    at NuGet.Protocol.Core.v3.RemoteRepositories.PackageUtilities.<OpenNuspecFromNupkgAsync>d__0.MoveNext()

I think all packages on myget fail with this error (or maybe rc2 packages).

The dependency is defined as:

    "dependencies": {
        "NETStandard.Library": "1.0.0-rc2-23811"
    }

Version of dotnet cli: 1.0.0-beta-001494

Steps to reproduce:

1. Create empty folder
2. Run there “dotnet new”
3. Run there “dotnet restore -v=debug > log.txt”

Using a browser to download the file ‘https://dotnet.myget.org/F/dotnet-core/api/v3/flatcontainer/netstandard.library/1.0.0-rc2- 23811/netstandard.library.1.0.0-rc2-23811.nupkg’ succeeds.

Full log: log.txt

[kierenj]

@blackdwarf / others … I fixed this by going into Docker for Windows’ settings, then Network, then un-checking ‘VPN compatibility mode’, which is ON by default.

[RobTheX]

… ok, I found the solution for my problem: I removed/commented the “clear” statement in the “NuGet.Config” file in my project directory (see screenshot). Then restoring worked (I still had some “Not Found …” messages though) and I could also run the project.