I was recently setting up a brand new Windows Server 2012 R2 Server in a hosted environment and I needed to install the .NET Framework v. 3.5 when I suddenly got this error message:
Hmmm. That was interesting. I had never encountered this error message before and the server was definitely connected to the Internet!
So, I tried it once again, but this time with PowerShell:
Still the same error message!
Well, I did some investigation, and for whatever reason, the source files could not be retrieved over the Internet which meant that I would have to provide an alternative source file path.
Therefore, I ended up using this PowerShell command instead:
Hmmm. That was interesting. I had never encountered this error message before and the server was definitely connected to the Internet!
So, I tried it once again, but this time with PowerShell:
Still the same error message!
Well, I did some investigation, and for whatever reason, the source files could not be retrieved over the Internet which meant that I would have to provide an alternative source file path.
Therefore, I ended up using this PowerShell command instead:
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /Source:F:\sources\sxs
That did the trick!
You can also use this alternative PowerShell command:
$SourceDir = "F:\sources\sxs"Install-WindowsFeature –name NET-Framework-Core –source $SourceDir
Both of these solutions are also documented in this Microsoft support article: https://support.microsoft.com/en-us/kb/2734782
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