A client-local nat rule redirecting dport 8081 to the plain-HTTP staging
UTAS host captures the roster/squad-update TLS connection, which is
https://winter15.gosredirector.ea.com:8081/fifa17/fut/rosterupdate.xml.
The staging host completes the TCP handshake then closes on the
ClientHello, so the client retries and shows "An error occurred
downloading the FUT squad update."
Proven by capturing on the server while probing from the client: a
connection addressed to :8081 arrives as dport 8299, while an :8443
control in the same capture yields 75 packets and a clean handshake.
The script deletes only nat rules whose destination port is 8299, then
verifies the endpoint presents CN = winter15.gosredirector.ea.com.
funman300
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