SUMMARY:
This issue has been known to occur for users experiencing intermittent network failures. It only impacts users with Trusted Authentication in Strategy Web 9.x and later. While network failures can only be diagnosed and treated by the local Network Administrator, this document defines steps that will prevent an export error that can occur under these conditions.
SYMPTOM:
After successfully executing a Strategy report, exporting the returned report will result in the following error:

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With this setting checked, users will store their Intelligence Server session as a cookie on their local machine. In the event that the connection between the Web Server and the Intelligence Server is dropped, the information stored in this cookie will allow the user to reconnect with their pre-existing Intelligence Server Session, instead of creating a new one. This will give the user their pre-existing Working Set, and the ability to export their report without issue.
VIDEO:
ADDITIONAL TROUBLESHOOTING STEPS:
If the workaround steps above do not resolve the issue, please consider calling Strategy technical support after performing the following steps:
Third Party Software Installation: WARNING:
The third-party product(s) discussed in this technical note is manufactured by vendors independent of Strategy. Strategy makes no warranty, express, implied or otherwise, regarding this product, including its performance or reliability.