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Cisco Bug: CSCuo97883 - 3700 AP 5ghz clients stop forwarding traffic under load with Tkip

Last Modified

Jul 16, 2019

Products (1)

  • Cisco Aironet 3700 Series Access Points

Known Affected Releases

7.6(120.0)

Description (partial)

Symptom:
Wireless clients authenticated to a 3700 series access point may stop passing traffic, but remain authenticated.

Conditions:
WLC Code 7.6.120.0

5ghz with Tkip is the only susceptible condition.

The problem is not observed with these variants:

5ghz AES
2.4ghz TKIP
2.4ghz AES

The issue is not typically observed under low client traffic conditions.

When heavier client traffic is generated, the issue is more likely to occur.

Related Community Discussions

7.6MR3 Beta Availability
7.6.122.x Available - 7.6MR3 Beta       Aug  26h 7.6MR3 (7.6.130.0) is now posted in CCO.  Beta for this release is over, thanks!   Support For any new issue during this test, please write to wnbu-mrbeta@external.cisco.com, pre-existing problems would be directed through normal TAC support channels, the image is TAC supported until CCO release of final code   Image types AS_5500* can be used for Wism2/2500/5500 controller types AS_7500* can be used for 7500/8500 AS_CTVM can be used for vWLC   Issues ...
Latest activity: Aug 25, 2014
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