03-21-2021 08:07 PM - edited 07-05-2021 01:01 PM
I'm having one final issue with this Cisco AP 1142.
I have a single client that appears to be connected and getting updates.
It's a small ESP8266 based weather station.
Below is a list of some log entries showing this activity:
001984: *Mar 21 21:38:31.307 -0500
Interface Dot11Radio0, Station 6001.9438.0782 Associated KEY_MGMT[WPAv2 PSK]
001983: *Mar 21 21:38:31.282 -0500
Interface Dot11Radio0, Deauthenticating Station 6001.9438.0782 Reason: Sending station has left the BSS
001982: *Mar 21 21:38:15.478 -0500
Interface Dot11Radio0, Station 6001.9438.0782 Associated KEY_MGMT[WPAv2 PSK]
001981: *Mar 21 21:38:15.465 -0500
Interface Dot11Radio0, Deauthenticating Station 6001.9438.0782 Reason: Sending station has left the BSS
001980: *Mar 21 20:37:33.429 -0500
Interface Dot11Radio0, Station 6001.9438.0782 Associated KEY_MGMT[WPAv2 PSK]
001979: *Mar 21 20:37:33.412 -0500
Interface Dot11Radio0, Deauthenticating Station 6001.9438.0782 Reason: Sending station has left the BSS
Config log:
! Last configuration change at 22:07:14 -0500 Fri Mar 19 2021 version 15.3 no service pad service timestamps debug datetime msec service timestamps log datetime msec localtime show-timezone service password-encryption service sequence-numbers ! hostname ap ! ! logging rate-limit console 9 no logging console enable secret 5 XXXXXXXXXXXXXXXXXX ! no aaa new-model clock timezone -0600 -6 0 clock summer-time -0500 recurring no ip source-route no ip cef ip domain name cisco.local ! ! ! ! dot11 pause-time 100 dot11 syslog dot11 activity-timeout unknown default 6000 dot11 activity-timeout client default 6000 ! dot11 ssid JesusIsLord authentication open authentication key-management wpa version 2 accounting acct_methods guest-mode wpa-psk ascii 7 XXXXXXXXXXXXX no ids mfp client ! dot11 ssid JesusIsLord_5G authentication open authentication key-management wpa version 2 guest-mode wpa-psk ascii 7 XXXXXXXXXXXXXX ! ! ! power inline negotiation prestandard source no ipv6 cef ! ! username Cisco password 7 XXXXXXXXXXXXX username XXXX privilege 15 password 7 XXXXXXXXXXXXXXXXX ! ! bridge irb ! ! ! interface Dot11Radio0 no ip address ! encryption mode ciphers aes-ccm ! ssid JesusIsLord ! antenna gain 0 speed basic-12.0 18.0 24.0 36.0 48.0 54.0 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15. station-role root no dot11 extension aironet l2-filter bridge-group-acl bridge-group 1 bridge-group 1 subscriber-loop-control bridge-group 1 input-address-list 700 bridge-group 1 output-address-list 700 bridge-group 1 spanning-disabled bridge-group 1 block-unknown-source no bridge-group 1 source-learning no bridge-group 1 unicast-flooding ! interface Dot11Radio1 no ip address ! encryption mode ciphers aes-ccm ! ssid JesusIsLord_5G ! antenna gain 0 peakdetect dfs band 3 block speed basic-12.0 18.0 basic-24.0 36.0 48.0 54.0 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15. channel width 40-above channel dfs station-role root dot11 dot11r pre-authentication over-air no dot11 extension aironet l2-filter bridge-group-acl bridge-group 1 bridge-group 1 subscriber-loop-control bridge-group 1 input-address-list 700 bridge-group 1 output-address-list 700 bridge-group 1 spanning-disabled bridge-group 1 block-unknown-source no bridge-group 1 source-learning no bridge-group 1 unicast-flooding ! interface GigabitEthernet0 no ip address duplex auto speed auto l2-filter bridge-group-acl bridge-group 1 bridge-group 1 input-address-list 700 bridge-group 1 output-address-list 700 bridge-group 1 spanning-disabled no bridge-group 1 source-learning ! interface BVI1 mac-address 0022.bd18.b290 ip address 192.168.86.90 255.255.255.0 ipv6 address dhcp ipv6 address autoconfig ! ip default-gateway 192.168.86.1 ip forward-protocol nd ip http server no ip http secure-server ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag ! no cdp run ! bridge 1 route ip ! ! ! line con 0 line vty 0 4 login local transport input all ! end
Thanks in advance.
03-22-2021 06:48 AM
Hi glen4cindy,
Please confirm whether only one user is facing the issue or all the connecting users?
check with the below commands
cisco#clear dot11 client 0011.2233.4455 <= deauthenticate a client
cisco#clear int dot11radio0 <= reset a radio
cisco#reload <= reboot the AP
03-22-2021 06:15 PM
Hello Anjana A,
This is primarily happening to the client with MAC address 6001.9438.0782 which is my ESP8266 weather station. I should say this device seems to have the current weather forecast and the correct time and temperature.
It does happen to other clients on occasion. Again they seem to reconnect within a matter of seconds or less.
I'm at a loss here as to the cause.
03-22-2021 11:54 PM - edited 03-22-2021 11:54 PM
I would say try to select a lower data rate as mandatory (6-Mbps if you want to leave 802.11b stations out of your network, or maybe 2-Mbps). In your current config using12-Mbps rate as basic you are preventing distant stations to associate. If your weather station is close to the fuzzy boundary where 12-Mbps could be used, then the station could disassociate from while to while.
Also check with an OTA packet capture the rates that your weather station support. Sometimes they use cheaper chipset not always supporting all of the features from the standard, or taking wrong connectivity decisions because of this.
HTH
-Jesus
*** Please Rate Helpful Responses ***
03-25-2021 05:32 AM
Alternatively, move the station closer to the AP. If it stays stable, it's indeed a signal problem. If it still reconnects often, it could be a firmware issue on the ESP8266, there have been many updates to them in the past.
03-25-2021 05:06 PM
Thanks everyone,
I did quite a bit of experimentation with data rates finally settling on "Best Range" and all of the activity I mentioned has stopped.
My next step will be to move the AP closer and change things a bit.
If I still find issues I'll be happy knowing it's a chipset issue with the ESP8266.
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