Problem: I have a web application that was created using ArcGIS Viewer for Flex 3.7. From the Flex Print widget, I am unable to print a map containing secured map services. I receive the error "Unable to connect to map server". The ArcGIS Server Print task works without error if the map does not contain any secured map services.
Server software: ArcGIS for Server 10.3.1
Client: ArcGIS Viewer for Flex 3.7
Web Server: IIS
OS: Windows 2008 R2
a) In ArcGIS Server Manager, I have both the User and Role Store configured using the "Windows Domain" option. Technical Note: Because not all of our Windows Domain Controllers in our Windows Domain have the GC or Global Catalog role, I have to manually configure a domain controller to use using the REST Admin. I can see all of my Windows users and Windows Groups in Manager.
b) Web Adaptors: I have two web adaptors installed. One web adaptor for the public map services and a second web adaptor for the restricted, secured map services. The web adaptor for the restricted/secured map services is configured in IIS to use Windows Authentication.
This issue is similar to the bug described in Knowledge Base Article # 41982 for ArcGIS Server versions 10.1 and 10.2.
Does anyone know of a work around for printing secured map services using Web Tier and Windows Authentication with Flex 3.7 and ArcGIS for Server 10.3.1 ?