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Cisco Bug: CSCur62548 - AP2702 generating AES-CCMP errors for PSK SSIDs

Last Modified

Mar 27, 2020

Products (26)

  • Cisco Aironet 3700 Series Access Points
  • Cisco AP802 Integrated Access Point
  • Cisco Aironet 1552I Outdoor Access Point
  • Cisco Aironet 1040 Series Access Point
  • Cisco Aironet 2600i Access Point
  • Cisco Aironet 1600i Access Point
  • Cisco Aironet 2700e Access Point
  • Cisco Aironet 1700i Access Points
  • Cisco Aironet 1260 Access Point
  • Cisco Aironet 2700i Access Point
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Known Affected Releases


Description (partial)

Access points generate the following log errors:

Nov  5 22:48:12.923 UTC: %DOT11-4-CCMP_REPLAY: Client 6033.4b25.7481 had 1 AES-CCMP TSC replays

When this happens, packet drops and high latency are seen on associated clients.

This has been seen to occur when multiple clients are associated and transmitting data on SSIDs configured for pre-shared keys.  SSIDs doing 802.1x are not affected.
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Bug Details Include

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