Are the users getting this issue when trying to open the document with the IE Plugin? Have you determined if traffic is possible over port 4747 from their machines to the operational server?
My first assumption would be that there is some reason that network traffic is not being allowed over port 4747 to the server which is why you are getting the error. Can the users access the documents if they attempt to use the Full Browser verion (click View Details under the document and choose Full Browser). If this works then your likely looking at an issue with traffic not being allowed over port 4747 to the QlikView server. Do you have networking support staff that can assit you in determining if their are any firewalls rules or possible a software firewall on those workstations causing a problem?
