topic Re: Client Drops Connection on 2.4gHz in Wireless

Client Drops Connection on 2.4gHz

jacovr — Mon, 05 Jul 2021 19:32:56 GMT

Good day all.

I have a 2500 WLC running 8.3.143.0 code, and 2802E Access Points.

The clients being used is Honeywell A70 Talkman devices.

I have users intermittently dropping connections, When looking at the sh msglog, I see the following errors.

I have attached the full msglog as well as a screen shot of the configured data rates:

Any Idea what the issue could be ?

*apfMsConnTask_1: Sep 22 16:59:49.873: %APF-4-ASSOCREQ_PROC_FAILED: apf_80211.c:6816 Failed to process an association request from 8c:27:8a:01:cf:14. WLAN:3, SSID:RG_TALKMAN. message with invalid supported rate.

*apfMsConnTask_0: Sep 22 16:59:11.776: %LOG-3-Q_IND: 1x_eapkey.c:2897 Received EAPOL-key message while in invalid state (4) - version 1, type 3, descriptor 2, client 8c:27:8a:01:cf:14

Re: Client Drops Connection on 2.4gHz

Mark Elsen — Wed, 23 Sep 2020 10:14:18 GMT

- 8.3 code is no longer advisable , if still needed for ap-backward compatibility or upgrade project not possible in forseable future , you can further use the wireless debug analyzer https://cway.cisco.com/tools/WirelessDebugAnalyzer/ also have a sanity check of the controller configuration with https://cway.cisco.com/tools/WirelessAnalyzer/ -> Best solution is to use advisory or gold-starred release for the controller.

Re: Client Drops Connection on 2.4gHz

jacovr — Wed, 23 Sep 2020 11:33:04 GMT

Thanx for the feedback.

Unfortunately it is not a debug, so the tool would not help much.

The config Analyzer did not show any major issues.

Any other ideas what might cause this issue ?

Re: Client Drops Connection on 2.4gHz

Mark Elsen — Wed, 23 Sep 2020 17:21:38 GMT

- You could still activate client-debugging for a particular mac address on the controller and use the tool.

Re: Client Drops Connection on 2.4gHz

Mark Elsen — Wed, 23 Sep 2020 17:23:07 GMT

- As for cause of the issue review the core of my initial reply....