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Cisco Bug: CSCuj31962 - Apple clients cannot send traffic on certain priorities if CAC enabled

Last Modified

Oct 02, 2014

Products (1)

  • Cisco Aironet 3700 Series Access Points

Known Affected Releases

7.6(1.75)

Description (partial)

Symptom:With the Cisco Wireless LAN Controller (WLC) configured to enable Call Admission Control (CAC), a bug may be triggered in certain Apple Macbook and Apple iOS (iPhone, iPad, iPod) devices that causes an associated device to be unable to pass traffic on certain priorities.

For example, the Apple device may be able to browse the web but unable to send & receive video traffic.  Or, the device may be unable to browse websites while it is able to respond to pings.

This bug is Apple Radar ID #15122485

Conditions:This Apple bug is known to occur in the following scenarios:
- Call Admission Control (CAC) is enabled on the WLAN controller AND
- Apple device (Macbook) has Broadcom driver version 5.106.98.100.22 and any version of OS X
  OR the Apple device has OS X 10.8.4 and Broadcom driver version 6.30.223.74.22
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