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Cisco Bug: CSCuj64462 - AP radio flapping w/ CleanAir down, could not connect to spectrum FW

Last Modified

Jul 12, 2018

Products (1)

  • Cisco Aironet 3700 Series Access Points

Known Affected Releases

7.4(100.0) 7.4(110.0) 7.6(1.107) 7.6(1.226) 8.0(72.70)

Description (partial)

Symptom:
On the WLC or PI GUI, CleanAir operational status for one or more Cisco Aironet series Access Points shows 'Down' as operational status with reason 'CleanAir internal error [5]'.  On the console log for the access point, there are messages such as:

%CLEANAIR-3-ERROR: Slot 0 could not connect to spectrum FW

*Oct  2 13:30:07.327: NCI-I1: openSensor(slot=1)
*Oct  2 13:30:37.315: NCI-E1: Sensor Connect failure, 260
*Oct  2 13:30:37.315: CleanAir: ****  Slot 1: Failed to start, err=5
*Oct  2 13:30:37.315: NCI-I1: shutdownNci

*Oct  2 13:29:57.327: CleanAir: ****  Slot 1: Failed to start, err=5

The event log shows repeated radio resets with reason code 37 (Radio IDB Reset):

Sep 26 22:32:53.579: %EVT-5-NTC: Radio d0 RST 37 Flags 60109 BCN 0
Sep 26 22:32:53.579: %EVT-5-NTC: Radio d0 RST 37 Flags 60109 BCN 0
Sep 26 22:32:53.579: %EVT-5-NTC: Radio d0 RST 37 Flags 60109 BCN 0

Conditions:
Occurs only with CleanAir capable Cisco Aironet Access Points (such as the 3500, 2600, and 3600 series)

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Latest activity: Dec 11, 2013
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