Re: cannot open document in IE plugin (QV11.2SR3 <> IE9)
Does AJAX work? Are the uses able to open in server using QlikView desktop? It might have to do with a blocked port 4747 preventing the plugin to connect using the QVP protocol. Normally should it kick over to tunnel on port 80 but if I dont rember wrong has it been some issues reported on that for SR3 & SR4 (should be fixed in SR5).
So double check the firewall to see so that the plugin has a clear passage to connect to the QVS.