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Cisco Bug: CSCur53809 - AP2702 sometimes unable to receive packets/ACK from STA with 20MHz wide

Last Modified

May 09, 2018

Products (31)

  • Cisco Aironet 3700 Series
  • Cisco AP802 Integrated Access Point
  • Cisco Aironet 1552I Outdoor Access Point
  • Cisco Aironet 2600i Access Point
  • Cisco Aironet 1040 Series Access Point
  • Cisco Aironet 2700e Access Point
  • Cisco Aironet 1600i Access Point
  • Cisco Aironet 1700i Access Points
  • Cisco Industrial Wireless 3702 Access Point
  • Cisco Aironet 1260 Access Point
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Known Affected Releases

15.3(3)JBB1 7.6(120.0) 8.0(120.0) 8.1(131.0)

Description (partial)

AP sometimes unable to receive packets/ACK from STA. During the issue, AP can forward the packet from wired to wireless, but unable to receive packets/ACK from STA.

Access points affected are 2600/3600/2700/3700 and possibly 1570 series.  Issue is not seen with an AP3502.  Most commonly observed on 20MHz wide channels in the UNII-3 band.  Problem is seen especially on channel 153.
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