I have just upgraded to SGOS v5.5. Why do clients on my network receive an exception page when an HTTP network failure occurs?
By default on SGOS v5.5, an enhanced HTTP feature called 'HTTP Network Failure Transparency' is enabled. Therefore, the ProxySG serves a 'TCP_ERROR' exception page when an upstream server connection error occurs.
If you would like to disable this feature, so that an exception is not served to clients on your network when a connection failure occurs, log into the ProxySG CLI and enter
SG#(config) http no exception-on-network-error
The ProxySG behavior will now be the same as v5.4 and earlier versions.
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