CSCud67358 Bug Details Degraded Wi-Fi throughput w/ Apple iOS6 clients w/ 11n/CAC during BA neg Symptom: Apple clients running iOS 6.0.1 may experience degraded throughput when attempting to download media rich content such as video. Apple clients running iOS 5.x or earlier do not experience the issue under identical conditions.
Apple support has observed and analyzed the issue, and has confirmed non compliant CAC behavior with iOS 6.0.1 software. Apple intends to correct the issue in forthcoming firmware updates. This release note will be updated with code fix specifics when available. Conditions: Apple iOS 6.0.1 client connected to Unified Access Point at 802.11N data rates with Video Call Admission Control (CAC) enabled. Workaround: Disable 802.11N support or disable Video Call Admission Control (CAC).
