How do I deal with Error 431 due to using Windows/IIS/Active Directory Authentication?
The reason the problem is happening is because our Building Block uses web services for some of the advanced functionality, and the page that our Turnitin servers are trying to access when calling the web services is being blocked or receiving a request to log in because you are using Windows IIS/Active Directory authentication. The quickest and best way to solve the problem would be to open up the folder in IIS and remove the security on the folder. The folder should have a path like “blackboard/content/vi/bb_bb60/plugins/turn-plgnhndl/webapp” or something similar to that. It is the folder that is created when the Building Block is installed and where all the building block files live.