Is Airwave in the environment?
How many Clients on one AP?
Are there other interferers?
Did you do a "show ap arm rf-summary ap-name" to see all the parameters on that AP?
show ap arm rf-summary ap-name "AP125"
Channel Summary
---------------
channel retry phy-err mac-err noise cov-idx intf_idx
------- ----- ------- ------- ----- ------- --------
161 0 0 0 0 0/0 0/0//0/0
1 0 0 0 91 5/0 29/6//0/0
48 0 0 0 0 0/0 0/0//0/0
165 0 0 0 0 0/0 0/0//0/0
5 0 0 0 89 0/0 11/19//0/0
6 0 0 0 85 0/0 11/19//0/0
7 0 0 0 84 0/0 0/24//0/0
11 0 0 20 93 7/0 26/2//0/0
149 0 0 0 0 0/0 0/0//0/0
36 0 0 0 0 0/0 0/0//0/0
153 0 0 0 0 0/0 0/0//0/0
40 3 0 2 89 11/0 21/0//0/0
157 0 0 0 0 0/0 0/0//0/0
44 0 0 0 0 0/0 0/0//0/0
HT Channel Summary
------------------
channel_pair Pairwise_intf_index
------------ -------------------
1-5 65
7-11 52
149-153 0
36-40 21
157-161 0
44-48 0
Interface Name :wifi0
Current ARM Assignment :40/21
Covered channels a/g :0/0
Free channels a/g :9/0
ARM Edge State :enable
Last check channel/pwr :2d:23h:7m:38s/2m:22s
Last change channel/pwr :2d:23h:7m:38s/2d:23h:7m:38s
Next Check channel/pwr :0s/8m:4s
Interface Name :wifi1
Current ARM Assignment :11/21
Covered channels a/g :0/2
Free channels a/g :0/1
ARM Edge State :enable
Last check channel/pwr :1d:8h:50m:59s/6m:9s
Last change channel/pwr :2d:18h:31m:7s/1d:15h:50m:11s
Next Check channel/pwr :0s/24s
On a single client, what is the output of "show ap association client-mac" to see the client retries vs. the channel retries and error rates, as well as the noise?
show ap association client-mac 00:90:4c:02:00:da
Flags: W: WMM client, A: Active, K: 802.11K client, B: Band Steerable
PHY Details: HT: High throughput; 20: 20MHz; 40: 40MHz
ss: spatial streams
Association Table
-----------------
Name bssid mac auth assoc aid l-int essid vlan-id tunnel-id phy assoc. time num assoc Flags
---- ----- --- ---- ----- --- ----- ----- ------- --------- --- ----------- --------- -----
AP125 00:1a:1e:20:82:e0 00:90:4c:02:00:da y y 2 10 CatchMe 1 0x108a g-HT-20-1ss 32m:29s 1 WAB
00:90:4c:02:00:da-00:1a:1e:20:82:e0 Stats
------------------------------------------
Parameter Value
--------- -----
Channel 11
Channel Frame Retry Rate(%) 0
Channel Frame Low Speed Rate(%) 0
Channel Frame Non Unicast Rate(%) 0
Channel Frame Fragmentation Rate(%) 0
Channel Frame Error Rate(%) 2
Channel Bandwidth Rate(kbps) 0
Channel Noise 92
Client Frame Retry Rate(%) 0
Client Frame Low Speed Rate(%) 0
Client Frame Non Unicast Rate(%) 0
Client Frame Fragmentation Rate(%) 0
Client Frame Receive Error Rate(%) 0
Client Bandwidth Rate(kbps) 0
Client Tx Packets 1965
Client Rx Packets 764
Client Tx Bytes 210807
Client Rx Bytes 462463
Client SNR 34