Wireless Access

Hi all,

we are facing issue with flapping channels in 5 GHz band. "show ap arm history " command shows following:

 

Interface :wifi0
ARM History
-----------
Time of Change Old Channel New Channel Old Power New Power Reason Result
-------------- ----------- ----------- --------- --------- ------ ------
2019-03-03 15:33:01 108+ 108+ 18 15 P- Configured
2019-03-03 15:32:59 60+ 108+ 18 18 Q Configured
2019-03-03 15:32:58 108+ 60+ 18 18 Q Configured
2019-03-03 15:32:57 60+ 108+ 18 18 Q Configured
2019-03-03 15:32:55 108+ 60+ 18 18 Q Configured
2019-03-03 15:32:54 60+ 108+ 18 18 Q Configured
2019-03-03 15:32:53 108+ 60+ 18 18 Q Configured
2019-03-03 15:32:52 60+ 108+ 18 18 Q Configured
2019-03-03 15:32:51 108+ 60+ 18 18 Q Configured
2019-03-03 15:32:50 60+ 108+ 18 18 Q Configured
2019-03-03 15:32:49 108+ 60+ 18 18 Q Configured
2019-03-03 15:32:48 60+ 108+ 18 18 Q Configured
2019-03-03 15:32:47 108+ 60+ 18 18 Q Configured
2019-03-03 15:32:46 60+ 108+ 18 18 Q Configured
2019-03-03 15:32:45 108+ 60+ 18 18 Q Configured
2019-03-03 15:32:44 60+ 108+ 18 18 Q Configured
2019-03-03 15:32:43 108+ 60+ 18 18 Q Configured

 

 

"show ap arm rf-summary" command shows following:

 

Channel Summary
---------------
channel retry phy-err mac-err noise util(Qual) cov-idx(Total) intf_idx(Total)
------- ----- ------- ------- ----- ---------- -------------- ---------------
36 0 0 0 92 6/2/0/0/96 0/0(0) 24/0//0/0(24)
40 0 0 0 92 0/0/0/0/100 0/0(0) 12/7//0/0(19)
44 0 0 0 92 0/0/0/0/100 0/0(0) 2/0//0/0(2)
48 0 0 0 92 0/0/0/0/100 0/0(0) 1/1//0/0(2)
52 0 0 0 92 95/0/0/0/5 0/0(0) 0/0//0/0(0)
56 0 0 0 92 95/0/0/0/5 0/0(0) 0/2//0/0(2)
60 0 0 0 92 99/1/0/0/2 0/0(0) 6/0//0/0(6)
64 0 0 0 92 100/0/0/0/0 0/0(0) 3/2//0/0(5)
100 0 0 0 92 0/0/0/0/100 0/0(0) 0/0//0/0(0)
104 0 0 0 92 0/0/0/0/100 0/0(0) 0/1//0/0(1)
108 0 0 0 94 1/0/0/0/99 0/0(0) 3/0//0/0(3)
112 0 0 0 92 0/0/0/0/100 0/0(0) 1/1//0/0(2)
116 0 0 0 92 5/1/0/0/96 0/0(0) 2/0//0/0(2)
120 0 0 0 92 0/0/0/0/100 0/0(0) 1/2//0/0(3)
124 0 0 0 92 1/1/0/0/100 0/0(0) 6/0//0/0(6)
128 0 0 0 92 0/0/0/0/100 0/0(0) 3/2//0/0(5)
132 0 0 0 92 95/0/0/0/5 0/0(0) 0/0//0/0(0)
136 0 0 0 92 100/0/0/0/0 0/0(0) 0/0//0/0(0)
140 0 0 0 92 4/0/0/0/96 0/0(0) 0/0//0/0(0)
1 0 0 0 94 22/21/0/0/99 0/0(0) 22/3//0/0(25)
6 0 0 0 94 28/27/0/0/99 0/0(0) 41/4//0/0(45)
11 0 0 0 96 8/4/3/0/99 0/0(0) 8/3//0/0(11)

Columns:util(Qual): ch-util/rx/tx/ext-ch-util/quality

HT/VHT Channel Summary
----------------------
Bandwidth Channel range Total interference index
--------- ------------- ------------------------
40MHz 116-120 5
40MHz 52-56 2
40MHz 100-104 1
40MHz 124-128 11
40MHz 36-40 43
40MHz 60-64 11
40MHz 108-112 5
40MHz 132-136 0
40MHz 44-48 4

Interface Name :wifi0
Current ARM Assignment :108+/15
Covered channels a/g :18/0
Free channels a/g :0/0
ARM Edge State :disable
Last check channel/pwr :6m:5s/3m:7s
Last change channel/pwr :54m:53s/54m:51s
Next Check channel/pwr :7s/1m:13s
Assignment Mode :Single Band

Interface Name :wifi1
Current ARM Assignment :11/9
Covered channels a/g :0/3
Free channels a/g :0/0
ARM Edge State :disable
Last check channel/pwr :4m:47s/28s
Last change channel/pwr :3d:12h:2m:45s/3d:12h:2m:24s
Next Check channel/pwr :1m:59s/4m:6s
Assignment Mode :Single Band

CCA stats history:wifi0

Channel quality history:wifi0
36:Q: 96 96 3 7 100 100 100 100 100 95 6 95 6 95 7 96 3 3 3 3 7 95 95 95
:c: 124 126 126 126 128 130 132 134 136 138 138 140 140 142 142 144 144 144 144 144 144 146 148 150
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 4 4 97 93 0 0 0 0 0 5 94 5 94 5 93 4 97 97 97 97 93 5 5 5
40:Q: 100 100 100 100 100 100 100 100 100 100 100 100 100 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 95 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 0 0 0 0 0 0 0 0 0 0
44:Q: 100 100 100 100 100 100 100 100 100 100 100 96 96 6 100 100 100 100 100 100 100 100 100 100
:c: 6 8 10 12 14 16 18 20 22 24 26 28 30 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 0 0 0 0 0 0 0 4 4 94 0 0 0 0 0 0 0 0 0 0
48:Q: 100 100 100 100 100 100 100 96 5 100 100 100 100 100
:c: 18 20 22 24 26 26 28 30 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 0 0 0 4 95 0 0 0 0 0
52:Q: 5 5 100 96 0 0 0 0 0 0 0 0 0 100
:c: 30 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 95 95 0 4 100 100 100 100 100 100 100 100 100 0
56:Q: 5 5 100 100 100 100 100 100 100 100 100 96 96 100
:c: 30 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 95 95 0 0 0 0 0 0 0 0 0 4 4 0
60:Q: 2 2 2 2 2 2 2 2 6 96 2 6 96 2 2 2 2 2 2 96 96 6 96 0
:c: 138 138 138 138 138 138 138 138 138 140 140 140 142 142 142 142 112 82 52 54 56 26 28 30
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 98 98 98 98 98 98 98 98 94 4 98 94 4 98 98 98 98 98 98 4 4 94 4 100
64:Q: 0 0 5 100 100 100 100 100 100 100 100 100 100 100 100
:c: 28 30 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 100 100 95 0 0 0 0 0 0 0 0 0 0 0 0
100:Q: 100 100 100 100 100 96 0 5 100 96 5 5 96 5 100 100 96 96 5 100
:c: 98 100 102 104 106 108 110 80 82 84 84 54 56 26 26 28 28 30 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 0 4 100 95 0 4 95 95 4 95 0 0 4 4 95 0
104:Q: 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
108:Q: 99 99 99 99 99 98 98 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99
:c: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
:N: *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94 *94
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
:R: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
112:Q: 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 95 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
116:Q: 96 96 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 4 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
120:Q: 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
124:Q: 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
128:Q: 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
132:Q: 5 5 100 0 0 0 0 0 0 0 0 0 0 0 100
:c: 30 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 95 95 0 100 100 100 100 100 100 100 100 100 100 100 0
136:Q: 0 0 5 100 100 100 100 100 100 100 100 100 100 96 100
:c: 28 30 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 100 100 95 0 0 0 0 0 0 0 0 0 0 4 0
140:Q: 96 96 5 100 100 100 100 100 100 100 100 100 100 96 100
:c: 28 30 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 4 4 95 0 0 0 0 0 0 0 0 0 0 4 0

CCA stats history:wifi1

Channel quality history:wifi1
1:Q: 99 99 98 97 99 96 99 96 100 97 99 99 100 97 96 98 98 100 98 99 98 97 97 99
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 1 1 2 3 1 4 1 4 0 3 1 1 0 3 4 2 2 0 2 1 2 3 3 1
6:Q: 99 99 97 96 98 98 97 99 97 100 96 100 100 98 98 98 99 97 98 98 99 98 100 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 1 1 3 4 2 2 3 1 3 0 4 0 0 2 2 2 1 3 2 2 1 2 0 0
11:Q: 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 98 98 99 99 99 99 99 99 99
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1
:R: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

 

 

 

So as  you can see, quality of some channels is very poor. I have made also spectrum analyzes and there is no big noice or even channels are not loaded. As you can see from outputs I have also changed power setting to 15 dBm (2019-03-03 15:33:01 108+ 108+ 18 15 P-), but still channels are not stable.

 

Do you have any idea, why quality is poor on 5 GHz, please.

 

THX

Can we please see the configuration of your ARM profile?

Hi Colin,

this is IAP enviroment with just 6 APs in cluster with some neighboring ubiquity APs.

ARM config is:

 

rf-band all

 

arm
wide-bands 5ghz
min-tx-power 18
max-tx-power 127
band-steering-mode prefer-5ghz
air-time-fairness-mode default-access
client-aware
scanning

rf dot11g-radio-profile
max-tx-power 9
min-tx-power 6

rf dot11a-radio-profile
max-tx-power 15
min-tx-power 12

 

THX

What is your regulatory domain profile?

Regulatory domain is SK.

 

Domain :SK

You should set Wide Channels to "none" to use 20 mhz channels to see if you can reduce contention.

If the channel is unstable, try reducing the signal strength. You need to know how much distance is between Ap and AP or what interference factors are there.

Signal strengt in you ARM profile is set to minimum 18dbm (63mw) thats seems like very high to me. Try to set max-tx to 15dbm (30mw). And min-tx to 10mw or so.

Other thing you could try is to lower your 5ghz bandwidth to 20mhz and avoid the use of channels with bad channels due to possible interference.

arm
wide-bands 5ghz
min-tx-power 18 >>>>>10
max-tx-power 127>>>>15

Hello guys,

regarding decreasing of power to 15 dBm, it was already done before, but no improvement.

 

Regarding to disabling wide channels, I have done it also, but still quality ofchannels is not so good.

As I have said earlier I have done also spectrum analysis and 5 GHz spectrum is clear and not loaded at all.

 

show ap arm rf-summary

Channel Summary
---------------
channel retry phy-err mac-err noise util(Qual) cov-idx(Total) intf_idx(Total)
------- ----- ------- ------- ----- ---------- -------------- ---------------
36 0 0 0 92 99/2/0/0/3 0/0(0) 25/0//0/0(25)
40 0 0 0 92 95/0/0/0/5 0/0(0) 8/5//0/0(13)
44 0 0 0 92 1/1/0/0/100 0/0(0) 1/2//0/0(3)
48 0 0 0 92 1/1/0/0/100 0/0(0) 6/1//0/0(7)
52 0 0 0 96 1/0/0/0/99 0/0(0) 2/2//0/0(4)
56 0 0 0 92 0/0/0/0/100 0/0(0) 0/1//0/0(1)
60 0 0 0 92 95/0/0/0/5 0/0(0) 0/0//0/0(0)
64 0 0 0 92 0/0/0/0/100 0/0(0) 0/0//0/0(0)
100 0 0 0 92 100/0/0/0/0 0/0(0) 0/0//0/0(0)
104 0 0 0 92 4/0/0/0/96 0/0(0) 0/0//0/0(0)
108 0 0 0 92 0/0/0/0/100 0/0(0) 0/0//0/0(0)
112 0 0 0 92 100/0/0/0/0 0/0(0) 0/0//0/0(0)
116 0 0 0 92 99/1/0/0/2 0/0(0) 2/0//0/0(2)
120 0 0 0 92 0/0/0/0/100 0/0(0) 0/1//0/0(1)
124 0 0 0 92 4/0/0/0/96 0/0(0) 0/0//0/0(0)
128 0 0 0 92 0/0/0/0/100 0/0(0) 0/0//0/0(0)
132 0 0 0 92 100/0/0/0/0 0/0(0) 0/0//0/0(0)
136 0 0 0 92 100/0/0/0/0 0/0(0) 0/0//0/0(0)
140 0 0 0 92 100/0/0/0/0 0/0(0) 0/0//0/0(0)
1 0 0 0 94 13/13/0/0/100 0/0(0) 15/2//0/0(17)
6 0 0 0 94 34/33/0/0/99 0/0(0) 35/4//0/0(39)
11 5 0 1 96 12/8/3/0/95 0/0(0) 13/2//0/0(15)

Columns:util(Qual): ch-util/rx/tx/ext-ch-util/quality

HT/VHT Channel Summary
----------------------
Bandwidth Channel range Total interference index
--------- ------------- ------------------------

Interface Name :wifi0
Current ARM Assignment :52/15
Covered channels a/g :19/0
Free channels a/g :0/0
ARM Edge State :disable
Last check channel/pwr :57s/3m:51s
Last change channel/pwr :5h:2m:38s/22h:33m:4s
Next Check channel/pwr :3m:31s/3m:15s
Assignment Mode :Single Band

Interface Name :wifi1
Current ARM Assignment :11/9
Covered channels a/g :0/3
Free channels a/g :0/0
ARM Edge State :disable
Last check channel/pwr :5m:1s/4m:32s
Last change channel/pwr :4d:9h:40m:58s/4d:9h:40m:37s
Next Check channel/pwr :35s/3m:10s
Assignment Mode :Single Band

CCA stats history:wifi0

Channel quality history:wifi0
36:Q: 3 3 7 96 8 100 100 95 3 3 3 3 3 7 100 100 100 100 100 95 2 2 6 95
:c: 122 122 122 124 124 126 128 130 130 130 130 130 130 130 132 134 136 138 140 142 142 142 142 144
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 97 97 93 4 92 0 0 5 97 97 97 97 97 93 0 0 0 0 0 5 98 98 94 5
40:Q: 5 5 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
:c: 30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 95 95 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
44:Q: 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
:c: 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
48:Q: 100 100 100 100 100 100 100 100 96 6 100 100 96 6 100 100 100 100 100 96 6 100 96 6
:c: 120 122 124 126 128 130 132 134 136 136 138 140 142 112 114 116 118 120 122 124 124 126 128 128
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 0 0 0 0 4 94 0 0 4 94 0 0 0 0 0 4 94 0 4 94
52:Q: 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99
:c: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
:N: *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
:R: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
56:Q: 100 100 100 100 96 5 100 100 100 100 100 100 100 96 5 100 100 100 100 100 100 100 96 6
:c: 142 144 146 148 150 120 122 124 126 128 130 132 134 136 106 108 110 112 114 116 118 120 122 122
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 4 95 0 0 0 0 0 0 0 4 95 0 0 0 0 0 0 0 4 94
60:Q: 5 5 5 96 5 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
:c: 88 58 28 30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 95 95 95 4 95 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
64:Q: 100 100 96 5 100 100 96 96 5 5 5 100 100 100 100 100 100 100 100 100
:c: 48 50 52 22 24 26 28 30 30 30 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 4 95 0 0 4 4 95 95 95 0 0 0 0 0 0 0 0 0
100:Q: 0 0 5 96 0 0 1 1 0 0 0 0 0 0 0 5 96 5 5 100
:c: 130 132 132 134 136 138 108 78 78 80 80 82 84 86 88 58 60 30 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 100 100 95 4 100 100 99 99 100 100 100 100 100 100 100 95 4 95 95 0
104:Q: 96 96 0 5 96 0 0 5 5 100 100 100 100 100 100 100 100 100 100
:c: 50 52 54 24 26 28 30 30 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 4 4 100 95 4 100 100 95 95 0 0 0 0 0 0 0 0 0 0
108:Q: 100 100 96 5 96 0 0 5 5 100 100 100 100 100 100 100 100 100 100
:c: 50 52 54 24 26 28 30 30 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 4 95 4 100 100 95 95 0 0 0 0 0 0 0 0 0 0
112:Q: 0 0 0 0 0 5 96 100 100 100 100 100 100 100 100 100 100 100 100
:c: 22 24 26 28 30 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 100 100 100 100 100 95 4 0 0 0 0 0 0 0 0 0 0 0 0
116:Q: 2 2 2 2 4 6 96 2 3 2 2 2 2 6 100 96 2 2 2 2 6 6 96 4
:c: 134 134 134 134 134 134 136 136 136 136 136 136 136 136 138 140 140 140 140 140 140 140 142 142
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 98 98 98 98 96 94 4 98 97 98 98 98 98 94 0 4 98 98 98 98 94 94 4 96
120:Q: 100 100 100 96 0 5 100 100 100 100 100 100 100 100 100 100 100 96 5 100
:c: 32 34 36 38 40 10 12 14 14 14 16 18 20 22 24 26 28 30 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 4 100 95 0 0 0 0 0 0 0 0 0 0 0 4 95 0
124:Q: 96 96 0 0 5 100 100 96 5 5 5 100 100 100 100 100 100 100 100 100
:c: 48 50 52 54 24 26 28 30 30 30 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 4 4 100 100 95 0 0 4 95 95 95 0 0 0 0 0 0 0 0 0
128:Q: 100 100 96 5 100 100 96 0 5 5 100 100 100 100 100 100 100 100 100 100
:c: 26 28 30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 4 95 0 0 4 100 95 95 0 0 0 0 0 0 0 0 0 0
132:Q: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 100
:c: 6 8 10 12 14 16 18 20 20 20 22 24 26 28 30 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 99 100 100 100 0
136:Q: 0 0 0 0 0 0 0 0 5 5 5 100 100 100 100 100 100 100 96 100
:c: 16 18 20 22 24 26 28 30 30 30 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 100 100 100 100 100 100 100 100 95 95 95 0 0 0 0 0 0 0 4 0
140:Q: 0 0 0 0 0 0 0 0 5 5 5 100 100 100 100 100 100 100 96 100
:c: 16 18 20 22 24 26 28 30 30 30 0 0 0 0 0 0 0 0 0 0
:N: 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 95
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 100 100 100 100 100 100 100 100 95 95 95 0 0 0 0 0 0 0 4 0

CCA stats history:wifi1

Channel quality history:wifi1
1:Q: 100 100 100 100 96 99 97 97 100 100 100 99 99 97 99 99 99 99 99 100 100 99 99 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 4 1 3 3 0 0 0 1 1 3 1 1 1 1 1 0 0 1 1 0
6:Q: 99 100 100 100 100 100 100 100 100 99 100 100 100 100 99 100 100 100 99 100 100 98 98 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 1 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 2 2 0
11:Q: 95 100 94 99 99 98 97 99 99 100 95 99 97 99 96 98 98 99 97 99 97 99 97 98
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96 *96
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 1 0 0 1 1 2 2 1 1 0 0 1 1 1 1 2 2 1 1 1 1 1 1 2
:R: 5 0 6 0 1 0 4 0 2 0 5 0 3 0 4 0 3 0 3 0 3 0 3 0

 

As you can see, for example channels 132, 136, 140 are very loaded, even base to spectrum analyzes no AP has those channels assigned.

 

THX