When configured to run a large report the browser was timing out when going through the ProxySG. The user would see the error message:
Bypassing the ProxySG would allow the report to be generated and downloaded successfully.
This is typically seen on slow web servers where the time taken to generate the report exceeds the default timeouts on the ProxySG
In this particular case the customer was able to workaround the issue by making two changes:
#(config)tcp-ip tcp-keepalive-timeout 1200