Is the server from the internet, or managed via WSUS/SCCM ?
Install-WindowsFeature -Name NET-Framework-Core -Source "D:\sources\sxs" -Restart Use code with caution. Troubleshooting Common Error Codes Error Code Root Cause
: Prevents DISM from trying to contact Windows Update if you have the local files. 2. Using Server Manager (GUI) Open Server Manager > Add Roles and Features .
This is a more permanent and manageable solution. Is the server from the internet, or managed via WSUS/SCCM
Once you have copied the .cab file to a local directory on your target server (for example, C:\NetFx3\microsoft-windows-netfx3-ondemand-package~31bf3856ad364e35~amd64~~.cab ), use one of the following deployment methods. Method 1: Deployment Image Servicing and Management (DISM)
Use the following command, replacing E: with the drive letter of your mounted ISO: powershell
Run the installation again via Server Manager or DISM without the /Source parameter. Troubleshooting Can not install dotNet 3,5 on Windows Server 2012R2 Once you have copied the
dism /online /enable-feature /featurename:NetFx3 /all /source:C:\NetFx3 /LimitAccess Use code with caution.
If a group policy is blocking your manual installation path: Run gpedit.msc to open the .
Mount the image onto the target server. Open the mapped drive letter (e.g., D: ). Navigate to the \sources\sxs\ directory. Is the server from the internet
Locate the file named microsoft-windows-netfx3-ondemand-package~31bf3856ad364e35~amd64~~.cab . Method 2: Copy from an Existing Server 2012 R2 Instance
Or using DISM with the source switch:
dism /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:C:\Temp\NetFX3