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Max retransmissions & interference threshold

Jim Mueller
Level 1
Level 1

We're getting complaints about a specific 1131AG in the field only being intermittently accessible. WCS shows both the a and b/g interfaces randomly bouncing, sometimes the reason for the bounce is unknown other times it says it's because it lost connection to the controller. I can ssh into the WCS but the engineer who setup the AP's doesn't seem to have enabled remote access via telnet or ssh.


 


We are also seeing these events:


 


802.11a interface of AP * is down: Controller 172.17.0.10 Reason: Max retransmissions for the AP have reached.


Interference threshold violation reported by '802.11b/g' interface of AP *, connected to Controller '172.17.0.10'.


 


I know I can adjust the threshold percentage, but that would only seem to mask the issue.


 


WCS gives this version info on the AP:
















Versions

<DIV style="DISPLAY: block" id=versions mcestyle="display: block;">








Software Version

6.0.202.0

Boot Version

12.3.8.0
















Inventory Information

<DIV style="DISPLAY: block" id=inventoryInfo mcestyle="display: block;">

















AP Type

CAPWAP

AP Model

AIR-LAP1131AG-A-K9

IOS Version

12.4(21a)JHC

AP Certificate Type

Manufacture Installed

AP Serial Number
















Unique Device Identifier (UDI)

<DIV style="DISPLAY: block" id=udiInfo mcestyle="display: block;">

















Name

Cisco AP

Description

Cisco Wireless Access Point

Product Id

AIR-LAP1131AG-A-K9

Version Id

V01

Serial Number

*




<BR type="_moz" mozdirty>WCS CLI shows this version info:


(Cisco Controller) show>sysinfo


Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 6.0.202.0
Bootloader Version............................... 1.0.1
Field Recovery Image Version..................... 6.0.182.0
Firmware Version................................. FPGA 1.3, Env 1.6, USB console 1.27
Build Type....................................... DATA + WPS


System Name...................................... FLDS-5508-01
System Location..................................
System Contact...................................
System ObjectID.................................. 1.3.6.1.4.1.9.1.1069
IP Address....................................... 172.17.0.10
Last Reset....................................... Software reset
System Up Time................................... 247 days 5 hrs 0 mins 52 secs
System Timezone Location......................... (GMT -5:00) Eastern Time (US and Canada)
Current Boot License Level....................... base
Current Boot License Type........................ Permanent
Next Boot License Level.......................... base
Next Boot License Type........................... Permanent


Configured Country............................... US  - United States


More or (q)uit
Operating Environment............................ Commercial (0 to 40 C)
Internal Temp Alarm Limits....................... 0 to 65 C
Internal Temperature............................. +35 C
External Temperature............................. +20 C
Fan Status....................................... OK


State of 802.11b Network......................... Enabled
State of 802.11a Network......................... Enabled
Number of WLANs.................................. 3
3rd Party Access Point Support................... Disabled
Number of Active Clients......................... 100


Burned-in MAC Address............................ 2C:54:2D:72:74:40
Power Supply 1................................... Present, OK
Power Supply 2................................... Present, OK
Maximum number of APs supported.................. 75


 


Thanks!


 


Jim

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