Install-WindowsFeature Web-Net-Ext failed. Source files could not be found.

Error: Trying to install .NET Framework 3.5 Features on a Windows Server 2016, either through GUI or PowerShell, returns below error (truncated): "The request to add or remove features on the specified server failed. Installation of one or more roles, role services, or features failed. The source files could not be found." Cause: .Net Framework … Continue reading Install-WindowsFeature Web-Net-Ext failed. Source files could not be found.