Mendix Industrial Edge Plug In

I am currently configuring the Industrial Edge Plug In for Mendix Studio 9.26.16, all configures fine until I enter the IEM details when authentication fails with a 404 not found error ?? I can connect to the IEM from the subnet I'm working on, I have tried on site and off site incase it was a firewall rule but still to no avail.   Am I missing something and how is it trying to authenticate.
1 answers

Have you check if your IEM version is (PRO/Virtual/Cloud) =>1.3 and, can you also access IAM? 

If not then i think your IEM just like me witch have no user realms to verify with mendix plugin.

Hope this will clarify your problem.