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What does the Too many missed beacons error message mean?

Core Issue

A beacon is a wireless LAN packet that signals the availability and presence of the wireless device. Beacon packets are sent by APs and base stations. However, client radio cards send beacons when operating in computer-to-computer (ad hoc) mode.

These beacons must be acknowledged back and forth between two communicating devices. The devices may disassociate from each other if a series of beacons is missed.

The Access Point (AP) does not force disassociation if the client does not respond to beacons or if the client misses one beacon. It only disassociates a client when it does not respond to data packets sent by the AP. However, this behavior is client specific. As far as Cisco clients are concerned, they disassociate or roam to another AP when they miss eight consecutive beacons.

For more information, refer to the Roaming Events section of Cisco Fast Secure Roaming Application Note.

Resolution

To resolve this issue, refer to these documents:

Problem Type

Error message

Products

BR 350

BR 1400

AP 340, 350

BR 340

VxWorks Errors, Warnings, Statistics and Log Messages

Too many missed beacon

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