Rejected Diameter request that reused a duplicate identity with different contents

Logged when a request carries the same diameter_origin_host and End-to-End Identifier as a request Radiator processed or is processing, but its other contents differ. Duplicate detection ignores the Hop-by-Hop Identifier, the T flag, and Route-Record and Proxy-Info AVPs, so a retransmission through another agent is still recognized; any other difference means the peer reused the identifier for a new request, which RFC 6733 forbids for at least four minutes. Radiator answers only this request with 5012 (DIAMETER_UNABLE_TO_COMPLY), does not process it, and keeps the connection open.

Check how the originating node allocates End-to-End Identifiers, for example after a restart, and whether an intermediate agent modifies requests when it retransmits them.