EMS Management Console Access Violation

I am trying to set up Multi Tenancy and have ems server running on IIS on Server 2012.

I can run EMSMultiTenantConsole and add and modify tenants.

I am then trying to run EMSManagement Console to connect to the tenant and add an initial user. Host 'localhost' - Port '8081' - URL Path 'emsconsole.dll' . Test Connection returns successful connection.

I enter the Tenant ID and Secret but when I try to log in using 'consoleuser' I get an access violation error.

Any ideas??