Since version 3.8.0 of Stash the server.xml configuration file has been moved to <Stash home directory> /shared/server.xml. Previously this was located at <Stash installation directory>/conf/server.xml.

Due to this change support zips generated in Stash no longer pick up the server.xml - this is one of the key files to get from the customer, especially when the issue is relating to proxy config etc.