Error when exporting from a report to Excel, PDF etc. : "Internet Explorer cannot download ... ReportViewerWebControl.axd from www.bluehills.co.uk..."
This is a browser cache issue. Documents produced in SSL (secure web connection) generally will not cache. Since SSL will not cache the secured document there is nothing to reference, resulting in the error message. Please try the following:
From Internet Explorer, go to: tools/internet options/advanced - scroll to the security section/uncheck “do not save encrypted pages”.