03-29-2022 11:06 AM
Hi Guys,
I am having one WLC with code 8.3.150.0 and users are having issues in frequent disconnection.
i ran debug and found below. Anone knows if this is bug/error and workarround for this.
May 28 11:03:11.568 | *spamApTask1 | Client delete code: AP idle timeout, AP triggered client deauth That can be due to possible reasons: Wired guest client has expired (no traffic)/ Default event for AP side triggered client delete. Normal scenarios would be idle timeout, AP radio issues, channel changes, etc. |
May 28 11:03:11.579 | *spamApTask1 | Client expiration timer code set for 1 seconds. The reason: Dissasociation or deauthentication received from client, this is valid on 802.11w scenario. Also, generic termination clause, reason would be provided by pervious log message |
May 28 11:03:11.623 | *apfReceiveTask | Client has been deauthenticated |
May 28 11:03:11.641 | *apfReceiveTask | Client session has timed out |
03-29-2022 11:29 AM
this is too generic. Start investigating by the physical layer. Does clients have good signal? any chance they are at some coverage hole?
Then, try to identify if they actually drop from the network. You can see this by running show command and see how long is the client session. If client session is long, then they are not dropping.
Users usually complain about dropping the network but they dont have enough information. Sometimes one application is the problem and not the network.
03-29-2022 12:00 PM - edited 03-29-2022 12:21 PM
can I know what is L3 security of WLAN ?
Debug ran
debug client <mac addr>
Logs to parse
Received Idle-Timeout from AP 00:26:cb:94:44:c0, slot 0 for STA 00:1e:8c:0f:a4:57
apfMsDeleteByMscb Scheduling mobile for deletion with deleteReason 4, reasonCode 4
Scheduling deletion of Mobile Station: (callerId: 30) in 1 seconds
apfMsExpireCallback (apf_ms.c:608) Expiring Mobile!
Sent Deauthenticate to mobile on BSSID 00:26:cb:94:44:c0 slot 0(caller apf_ms.c:5094)
Conditions
Occurs after no traffic received from Client
Default Duration is 300 seconds
Workaround
Increase Idle Timeout either globally from WLC GUI>>Controller>>General or per WLAN from WLC GUI>>WLAN>>ID>>Advanced.
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