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Cisco Bug: CSCur70819 - Intel Centrino clients unable to pass traffic at 11n speeds

Last Modified

Nov 27, 2020

Products (26)

  • Cisco Aironet 1200 Series Software
  • Cisco Aironet 1552I Outdoor Access Point
  • Cisco AP802 Integrated Access Point
  • Cisco Aironet 1040 Series Access Point
  • Cisco Aironet 2700e Access Point
  • Cisco Aironet 2600i Access Point
  • Cisco Aironet 1700i Access Points
  • Cisco Aironet 1600i Access Point
  • Cisco Aironet 1260 Access Point
  • Cisco Aironet 1140 Access Point
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Known Affected Releases


Description (partial)

Wireless clients with Intel Centrino 6x00 AGN wireless adapters cannot pass traffic reliably, if at all, at 802.11n data rates.  Most packets are dropped.

This has been observed with older versions of the Intel Centrino wireless adapters on Windows as well as the latest 6200 and 6300 driver on Linux.  Traffic passes successfully with 1252 access-points, but not with 2702 access-points.  This has been observed with the 2702 APs running autonomous IOS images.
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