DescriptionWhat does “Replay Counter Mismatch” means in station-log?
ScopeKB Article Type:
Design
Related
Products: Controller,
AP
Related Software
Versions:
Any
Keywords: Replay
Counter Mismatch,
station-log
Solution2013-05-23 11:13:24.903 | 88:53:2e:27:33:a5 | 1X
Authentication | Replay Counter Mismatch2013-05-23
11:13:24.907 | 88:53:2e:27:33:a5 | 1X Authentication | Replay Counter
Mismatch
The above error comes up, when the AP transmits a key to a
station; it expects a response back within certain duration (1000ms as
per the standard). If the station does not respond, the AP increments
the counter and retransmits a new key. If the AP receives a response to
first key message just after the retransmission of the new key, a
mismatch occurs in the
counter.
Another reason, could be that key received by the AP but
processed very late (after a new key retired from the client) resulting
replay counter
mismatch.
