WLC 5508 - wlan stability problems

lusousaep · ‎11-09-2012

Hi.

I have a WLC 5508 with half a dozen LAPs (AIR-CAP3502I-E-K9).

They have been working but sometimes clients detect conectivity problems with the wlan.

Here is the message log I can obtain from the controller:

Nov 09 12:16:31.886: [ERROR] pemTimers.c 330: invalid interface name (john_doe) in mscb!!!

*dot1xMsgTask: Nov 09 12:16:10.286: %DOT1X-3-MAX_EAPOL_KEY_RETRANS: 1x_ptsm.c:444 Max EAPOL-key M1 retransmissions exceeded for client 00:26:c6:12:e8:32

Previous message occurred 7 times.

Nov 09 11:55:24.682: [ERROR] pemTimers.c 330: invalid interface name (john_doe) in mscb!!!

*apfReceiveTask: Nov 09 11:51:30.788: %RRM-3-RRM_LOGMSG: rrmChanUtils.c:290 RRM LOG: Airewave Director: Could not find valid channel lists for 802.11bg

*spamApTask2: Nov 09 11:51:20.144: %DTLS-3-HANDSHAKE_FAILURE: openssl_dtls.c:631 Failed to complete DTLS handshake with peer 10.23.1.118

*dot1xMsgTask: Nov 09 11:50:44.878: %DOT1X-3-MAX_EAPOL_KEY_RETRANS: 1x_ptsm.c:444 Max EAPOL-key M1 retransmissions exceeded for client e0:ca:94:93:be:67

*apfReceiveTask: Nov 09 11:50:40.672: %RRM-3-RRM_LOGMSG: rrmChanUtils.c:290 RRM LOG: Airewave Director: Could not find valid channel lists for 802.11bg

*apfReceiveTask: Nov 09 11:50:38.625: %RRM-3-RRM_LOGMSG: rrmChanUtils.c:290 RRM LOG: Airewave Director: Could not find valid channel lists for 802.11bg

*apfReceiveTask: Nov 09 11:50:35.531: %RRM-3-RRM_LOGMSG: rrmChanUtils.c:290 RRM LOG: Airewave Director: Could not find valid channel lists for 802.11bg

*apfReceiveTask: Nov 09 11:50:31.068: %RRM-3-RRM_LOGMSG: rrmChanUtils.c:290 RRM LOG: Airewave Director: Could not find valid channel lists for 802.11bg

*apfReceiveTask: Nov 09 11:50:29.257: %RRM-3-RRM_LOGMSG: rrmChanUtils.c:290 RRM LOG: Airewave Director: Could not find valid channel lists for 802.11bg

*apfReceiveTask: Nov 09 11:50:28.707: %RRM-3-RRM_LOGMSG: rrmChanUtils.c:290 RRM LOG: Airewave Director: Could not find valid channel lists for 802.11bg

*apfReceiveTask: Nov 09 11:50:24.065: %RRM-3-RRM_LOGMSG: rrmChanUtils.c:290 RRM LOG: Airewave Director: Could not find valid channel lists for 802.11bg

Can somebody help me to understand these messages?

1)

*apfReceiveTask: Nov 09 11:50:24.065: %RRM-3-RRM_LOGMSG: rrmChanUtils.c:290 RRM LOG: Airewave Director: Could not find valid channel lists for 802.11bg

2)

Nov 09 11:55:24.682: [ERROR] pemTimers.c 330: invalid interface name (john_doe) in mscb!!!

3)

*dot1xMsgTask: Nov 09 11:50:44.878: %DOT1X-3-MAX_EAPOL_KEY_RETRANS: 1x_ptsm.c:444 Max EAPOL-key M1 retransmissions exceeded for client e0:ca:94:93:be:67

Thanks

Saravanan Lakshmanan · ‎11-09-2012

1)

*apfReceiveTask: Nov 09 11:50:24.065: %RRM-3-RRM_LOGMSG: rrmChanUtils.c:290 RRM LOG: Airewave Director: Could not find valid channel lists for 802.11bg

//APs are rebooting. don't panic, check the up time of AP. This message seen when AP rebooted/freshly joined and waiting for wlc to assign channel.

2)

Nov 09 11:55:24.682: [ERROR] pemTimers.c 330: invalid interface name (john_doe) in mscb!!!

//It is cosmetic and can be ignored.

3)

*dot1xMsgTask: Nov 09 12:16:10.286: %DOT1X-3-MAX_EAPOL_KEY_RETRANS: 1x_ptsm.c:444 Max EAPOL-key M1 retransmissions exceeded for client 00:26:c6:12:e8:32

//Keys M1-M5 used for wireless auth, here client having struggle completing the auth process.

get output of, WLC>debug client