12-08-2020 06:09 AM - edited 07-05-2021 12:53 PM
So basically I got complaints regarding bad wireless connectivity and I found an AP not showing any signal in the heatmap.
Looked in on the eventlogs and found:
%EVT-5-NTC_PROC: dot11_set_rm_scan:DFS Disable
Process: Dot11 Offchannel PROCESS
%EVT-5-NTC_PROC: : d0 Channel 6 width 0
Process: Dot11 Offchannel PROCESS
%EVT-5-NTC_PROC: mh_driver_off_chnl_complete: to Channel 6 for d0
Process: Dot11 driver
%EVT-5-NTC_PROC: dot11_return_serving_channel: d0 Channel 1
Process: Dot11 driver
%EVT-5-NTC_PROC: dot11_set_rm_scan:DFS Disable
Process: Dot11 Offchannel PROCESS
%EVT-5-NTC_PROC: dot11_set_rm_scan: d1 Channel 52 width 0
Process: Dot11 Offchannel PROCESS
%EVT-5-NTC_PROC: mh_driver_off_chnl_complete: to Channel 52 for d1
Process: Dot11 driver
%EVT-5-NTC_PROC: dot11_return_serving_channel: d1 Channel 48
Process: Dot11 driver
%EVT-5-NTC_PROC: dot11_set_rm_scan:DFS Disable
My first thought was about some sort of Interference causing that cycling and complaints from costumers and the missing signal in the heatmap? How do I find the interferring device(s)?
12-08-2020 07:49 AM
- Cleanair capable ap's might offer a solution , here is a sample document :
M.
12-08-2020 07:52 AM
01-22-2021 05:59 AM
what tools would I need?
01-22-2021 06:11 AM
I also looked into the stats with:
show ap stats 802.11b <broken_ap>
Stats Information
Number of Users................................ 0
TxFragmentCount................................ 10084553
MulticastTxFrameCnt............................ 2160656
FailedCount.................................... 250381
RetryCount..................................... 1054785
MultipleRetryCount............................. 480771
FrameDuplicateCount............................ 0
RtsSuccessCount................................ 1895390
RtsFailureCount................................ 228626
AckFailureCount................................ 2770749
RxIncompleteFragment........................... 0
MulticastRxFrameCnt............................ 0
FcsErrorCount.................................. 92191931
TxFrameCount................................... 10214739
WepUndecryptableCount.......................... 5
TxFramesDropped................................ 21548
this is what I found
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