Resolution You have to make sure .NET 3.5 is installed on all nodes on the cluster. You cannot install this feature through Server Manager as was allowed with Microsoft Server 2008. You must install it as is instructed below. Installing .NET 3.5 on Microsoft Server 2012 You need to make sure you have the 2012 Server ISO mounted as a drive letter in windows. Once you have the iso mounted as a drive letter, open and command prompt and run as administrator. Type the following: dism /online /enable-feature /featurename:NetFX3 /all /Source:d:sourcessxs /LimitAccess (Note: Source should be the Windows installation disc. In this example, this was located on D:. You will need to change the drive letter based on your mounted drive letter) Once you run that command, you should have .Net Framework 3.5 installed successfully. You can verify .NET installations by going into the Windows Registry, “regedit”. HKEY Local Machine, Software, Microsoft, .NET Framework…. You will need to make sure this is installed on every compute node. Additionally, ensure that you have the latest Windows updates on all nodes.