vs2017最近发布了，在安装时遇到了以下安装出错问题，以下是出错log信息
说明：安装时分别尝试了在vpn环境（天行vpn软件）和非vpn环境下的尝试
请求高人解答！

The product failed to install the listed workloads and components due to one or more package failures.

Incomplete workloads
Universal Windows Platform development (Microsoft.VisualStudio.Workload.Universal,version=15.0.26208.0)

Incomplete components
Universal Windows Platform tools (2.0) (Microsoft.VisualStudio.Component.UWP.Support,version=15.0.26208.0)
Universal Windows Platform tools for Cordova (2.0) (Microsoft.VisualStudio.ComponentGroup.UWP.Cordova,version=15.0.26208.0)
Universal Windows Platform tools for Xamarin (2.0) (Microsoft.VisualStudio.ComponentGroup.UWP.Xamarin,version=15.0.26208.0)
Windows 10 SDK (10.0.14393.0) (Microsoft.VisualStudio.Component.Windows10SDK.14393,version=15.0.26208.0)

You can search for solutions using the information below, modify your selections for the above workloads and components and retry the installation, or remove the product from your machine.

Following is a collection of individual package failures that led to the incomplete workloads and components above. To search for existing reports of these specific problems, please copy and paste the URL from each package failure into a web browser. If the issue has already been reported, you can find solutions or workarounds there. If the issue has not been reported, you can create a new issue where other people will be able to find solutions or workarounds.

Package 'Win10SDK_10.0.14393.795,version=10.0.14393.79501' failed to install.
Search URL: https://aka.ms/VSSetupErrorReports?q=PackageId=Win10SDK_10.0.14393.795;PackageAction=Install;ReturnCode=15605
Impacted workloads
Universal Windows Platform development (Microsoft.VisualStudio.Workload.Universal,version=15.0.26208.0)
Impacted components
Universal Windows Platform tools (2.0) (Microsoft.VisualStudio.Component.UWP.Support,version=15.0.26208.0)
Universal Windows Platform tools for Cordova (2.0) (Microsoft.VisualStudio.ComponentGroup.UWP.Cordova,version=15.0.26208.0)
Universal Windows Platform tools for Xamarin (2.0) (Microsoft.VisualStudio.ComponentGroup.UWP.Xamarin,version=15.0.26208.0)
Windows 10 SDK (10.0.14393.0) (Microsoft.VisualStudio.Component.Windows10SDK.14393,version=15.0.26208.0)
Log
C:\Users\fanyu\AppData\Local\Temp\dd_setup_20170310111159_176_Win10SDK_10.0.14393.795.log
Details
Command executed: "c:\windows\syswow64\windowspowershell\v1.0\powershell.exe" -NoLogo -NoProfile -ExecutionPolicy Unrestricted -InputFormat None -Command "& """C:\ProgramData\Microsoft\VisualStudio\Packages\Win10SDK_10.0.14393.795,version=10.0.14393.79501\WinSdkInstall.ps1""" -SetupExe sdksetup.exe -SetupLogFolder standalonesdk -PackageId Win10SDK_10.0.14393.795 -LogFile """C:\Users\fanyu\AppData\Local\Temp\dd_setup_20170310111159_176_Win10SDK_10.0.14393.795.log""" -SetupParameters """/features OptionId.AvrfExternal OptionId.WindowsSoftwareDevelopmentKit OptionId.WindowsSoftwareLogoToolkit OptionId.NetFxSoftwareDevelopmentKit /quiet /norestart"""; exit $LastExitCode"
Return code: 15605
Return code details: There was a problem downloading your product.