If you have your servers domain joined and are therefore using WSUS to push Windows Updates, you may receive this error message when trying to add features that use Windows Update Services.

You can bypass your local WSUS server and let the box pull down the .NET features from Microsoft directly by changing the following RegKey.

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU

Set the Value: UseWUServer —> 0 and restart the Windows Update Service.

Revert these changes when you are done and restart Windows Update Service.