Go to Control Panel => Administrative Tools.
Make sure that the ColdFusion 2016 .NET Service is running, and configure it to start automatically when the Windows server restarts.
Thanks for your quick reply. The ColdFusion 2016 .NET Service is already running and set to automatic start.I think its something else.
Was the Coldfusion 9 also installed on a 32 Bit server? If not, then there might be a version conflict. If it was, then there is something you could do: uninstall and reinstall the ColdFusion 2016 .NET Service.
To uninstall, go to Control Panel => Programs and Features. Right-click on Adobe ColdFusion 2016 .NET Integration Services, and uninstall.