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Cisco Bug: CSCuj15277 - ap1140 stops accepting new clients on 2.4GHz radio, TX queue is full

Last Modified

Jul 01, 2016

Products (1)

  • Cisco Aironet 3700 Series Access Points

Known Affected Releases

7.5(102.0)

Description (partial)

Symptom:
AP1140 on 7.5.102.0 stops accepting new clients on the 2.4 GHz interface.
When the AP is in the failed state the radio shows as UP and beaconing, but there's no data transmission (just beacons).

The Transmit queues seen on the radio do0 shows the following (note the global Current value and the active cnt on the voice queue):
Transmit queues: Limit 2830 Current 6726 In-Progress 0 AMSDU In-Progress 0 APSD In-Progress 0
       ---- Active --- In-Progress --------------- Counts --------------
        Cnt  Quo  Bas  Max  Cnt  Quo  Bas       Sent   Discard  Fail    Retry  Multi
Uplink    0   64    0    0    0    5    0          0         0     0        0      0
Voice  6726  128    0    0    0   60    0        287     76919     9       12      5
Video     0 1024    0    0    0  150    0          0         0     0        0      0
Best      0 1024    0    0    0  150    0     492366       238     3    76950  14472

Conditions:
AP1140 running 7.5.102.0
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