Sets, in minutes, how long a user stays classified as unidentified before SSG re-attempts authorization the next time it sees a packet from them. This is the retry backoff for the 'AAA never answered' case specifically, distinct from cssgTalSuspectUserTimeout's retry for the flagged-suspicious case, balancing how quickly a subscriber gets another shot at identification against how much repeat load a persistently-unresponsive AAA server gets hit with from retries. If AAA was briefly overloaded and failed to answer for a batch of new subscribers, a cssgTalUnidentifiedUserTimeout of 5 minutes means those subscribers automatically get retried about five minutes later rather than staying permanently unidentified.