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Cisco Bug: CSCuj17283 - ap3700 uses 8 replay counters w/ clients that support only 1 (ARP fails)

Last Modified

Jul 01, 2016

Products (1)

  • Cisco Aironet 3700 Series Access Points

Known Affected Releases

15.2(4)JA 7.6(1.113) 7.6(1.121) 7.6(100.0) 7.6(100.3)

Description (partial)

Symptom:Macbook Air, Macbook with 802.11ac chipset see dropped packets and odd ARP behaviors when associated to the 5.0GHz radio of a Cisco 3700 Series access point with WPA2 security.

Conditions:To reproduce, all of the following conditions must be met:
- Software:  WLC code 7.6.100.0
- AP/Radio: Cisco 3700 Series AP only on 5.0GHz radio
- Clients:  Macbook Air w/ 802.11ac, Macbook Pro w/ 802.11ac, and Intel 6300 v15.9.2.1
- Switches:  Only reproducible with certain switches, such as Catalyst 6500 and Catalyst 3560-CG
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