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Clients stopped connecting to Wireless Network

Hi Guys,

I have a CISCO 5500 with around 75 AP's connected. Today we have started to have an issue where it wont let our laptops connect to our network.

I have been looking at the logs and I can't figure out what is going on and why this has just started today. Everything was find over the weekend and the system hasn't changed. I have included the some of the logs bellow;

 

DOT11

*apfProbeThread: Oct 20 11:03:23.919: Received aggregated probe, dataLen = 98
*apfProbeThread: Oct 20 11:03:23.919: e4:9a:df:dd:1b:00 aggregated probe IE elmId=221, elm_len=9, dataLen=98
*apfProbeThread: Oct 20 11:03:23.919: aggregated probe IE: TIMESTAMP
*apfProbeThread: Oct 20 11:03:23.919: 5c:8d:4e:06:2a:69 aggregated probe IE elmId=221, elm_len=27, dataLen=87
*apfProbeThread: Oct 20 11:03:23.919: 5c:8d:4e:06:2a:69 aggregated probe IE: AGGR PROBE
*apfProbeThread: Oct 20 11:03:23.919: 5c:8d:4e:06:2a:69 probing client, ver=1, slot=0, wlan=0, snr=12, tx_pwr=0, chan=6, reg_class=0, ts_diff=270ms, seq_num=4110, ant_cnt=2, rssi[0]=174, rssi[1]=175
*apfProbeThread: Oct 20 11:03:23.919: 5c:8d:4e:06:2a:69 aggregated probe IE elmId=221, elm_len=27, dataLen=58
*apfProbeThread: Oct 20 11:03:23.919: 5c:8d:4e:06:2a:69 aggregated probe IE: AGGR PROBE
*apfProbeThread: Oct 20 11:03:23.919: 5c:8d:4e:06:2a:69 probing client, ver=1, slot=0, wlan=0, snr=11, tx_pwr=0, chan=6, reg_class=0, ts_diff=208ms, seq_num=16394, ant_cnt=2, rssi[0]=171, rssi[1]=177
*apfProbeThread: Oct 20 11:03:23.919: e4:25:e7:b8:fd:cd aggregated probe IE elmId=221, elm_len=27, dataLen=29
*apfProbeThread: Oct 20 11:03:23.919: e4:25:e7:b8:fd:cd aggregated probe IE: AGGR PROBE
*apfProbeThread: Oct 20 11:03:23.919: e4:25:e7:b8:fd:cd probing client, ver=1, slot=0, wlan=0, snr=13, tx_pwr=0, chan=6, reg_class=0, ts_diff=117ms, seq_num=4099, ant_cnt=2, rssi[0]=175, rssi[1]=175
*apfProbeThread: Oct 20 11:03:23.922: Received aggregated probe, dataLen = 40
*apfProbeThread: Oct 20 11:03:23.922: 59:5c:9b:dd:1b:00 aggregated probe IE elmId=221, elm_len=9, dataLen=40
*apfProbeThread: Oct 20 11:03:23.922: aggregated probe IE: TIMESTAMP
*apfProbeThread: Oct 20 11:03:23.922: e4:25:e7:b8:fd:cd aggregated probe IE elmId=221, elm_len=27, dataLen=29
*apfProbeThread: Oct 20 11:03:23.922: e4:25:e7:b8:fd:cd aggregated probe IE: AGGR PROBE
*apfProbeThread: Oct 20 11:03:23.922: e4:25:e7:b8:fd:cd probing client, ver=1, slot=0, wlan=0, snr=6, tx_pwr=0, chan=6, reg_class=0, ts_diff=120ms, seq_num=4097, ant_cnt=2, rssi[0]=170, rssi[1]=168
*apfProbeThread: Oct 20 11:03:23.953: Received aggregated probe, dataLen = 40
*apfProbeThread: Oct 20 11:03:23.953: c0:51:01:dd:1b:00 aggregated probe IE elmId=221, elm_len=9, dataLen=40
*apfProbeThread: Oct 20 11:03:23.953: aggregated probe IE: TIMESTAMP
*apfProbeThread: Oct 20 11:03:23.953: e4:25:e7:b8:fd:cd aggregated probe IE elmId=221, elm_len=27, dataLen=29
*apfProbeThread: Oct 20 11:03:23.953: e4:25:e7:b8:fd:cd aggregated probe IE: AGGR PROBE
*apfProbeThread: Oct 20 11:03:23.954: e4:25:e7:b8:fd:cd probing client, ver=1, slot=0, wlan=0, snr=10, tx_pwr=0, chan=6, reg_class=0, ts_diff=151ms, seq_num=4096, ant_cnt=2, rssi[0]=178, rssi[1]=180
*apfProbeThread: Oct 20 11:03:23.970: Received aggregated probe, dataLen = 69
*apfProbeThread: Oct 20 11:03:23.970: be:9f:19:dd:1b:00 aggregated probe IE elmId=221, elm_len=9, dataLen=69
*apfProbeThread: Oct 20 11:03:23.970: aggregated probe IE: TIMESTAMP
*apfProbeThread: Oct 20 11:03:23.970: 5c:8d:4e:06:2a:69 aggregated probe IE   elmId=221, elm_len=27, dataLen=58
*apfProbeThread: Oct 20 11:03:23.970: 5c:8d:4e:06:2a:69 aggregated probe IE: AGGR PROBE
*apfProbeThread: Oct 20 11:03:23.970: 5c:8d:4e:06:2a:69 probing client, ver=1, slot=0, wlan=0, snr=22, tx_pwr=0, chan=11, reg_class=0, ts_diff=111ms, seq_num=45066, ant_cnt=2, rssi[0]=176, rssi[1]=184
*apfProbeThread: Oct 20 11:03:23.970: 5c:8d:4e:06:2a:69 aggregated probe IE elmId=221, elm_len=27, dataLen=29
*apfProbeThread: Oct 20 11:03:23.970: 5c:8d:4e:06:2a:69 aggregated probe IE: AGGR PROBE
*apfProbeThread: Oct 20 11:03:23.970: 5c:8d:4e:06:2a:69 probing client, ver=1, slot=0, wlan=0, snr=14, tx_pwr=0, chan=11, reg_class=0, ts_diff=91ms, seq_num=49166, ant_cnt=2, rssi[0]=177, rssi[1]=185
*apfProbeThread: Oct 20 11:03:24.051: Received aggregated probe, dataLen = 40
*apfProbeThread: Oct 20 11:03:24.051: 2f:22:8a:dd:1b:00 aggregated probe IE elmId=221, elm_len=9, dataLen=40
*apfProbeThread: Oct 20 11:03:24.051: aggregated probe IE: TIMESTAMP
*apfProbeThread: Oct 20 11:03:24.051: 5c:8d:4e:06:2a:69 aggregated probe IE elmId=221, elm_len=27, dataLen=29
*apfProbeThread: Oct 20 11:03:24.051: 5c:8d:4e:06:2a:69 aggregated probe IE: AGGR PROBE
*apfProbeThread: Oct 20 11:03:25.855: Received aggregated probe, dataLen = 40
*apfProbeThread: Oct 20 11:03:25.855: d9:df:49:dd:1b:00 aggregated probe IE elmId=221, elm_len=9, dataLen=40
*apfProbeThread: Oct 20 11:03:25.855: aggregated probe IE: TIMESTAMP
*apfProbeThread: Oct 20 11:03:25.855: f0:db:f8:97:8b:d5 aggregated probe IE elmId=221, elm_len=27, dataLen=29
*apfProbeThread: Oct 20 11:03:25.855: f0:db:f8:97:8b:d5 aggregated probe IE: AGGR PROBE
*apfProbeThread: Oct 20 11:03:25.855: f0:db:f8:97:8b:d5 probing client, ver=1, slot=1, wlan=0, snr=11, tx_pwr=0, chan=52, reg_class=0, ts_diff=216ms, seq_num=12292, ant_cnt=2, rssi[0]=172, rssi[1]=171
*apfProbeThread: Oct 20 11:03:25.866: Received aggregated probe, dataLen = 69
*apfProbeThread: Oct 20 11:03:25.866: fd:09:82:dd:1b:00 aggregated probe IE elmId=221, elm_len=9, dataLen=69
*apfProbeThread: Oct 20 11:03:25.866: aggregated probe IE: TIMESTAMP
*apfProbeThread: Oct 20 11:03:25.866: f4:f1:e1:1d:cf:53 aggregated probe IE elmId=221, elm_len=27, dataLen=58
*apfProbeThread: Oct 20 11:03:25.866: f4:f1:e1:1d:cf:53 aggregated probe IE: AGGR PROBE

Logs from Controller Interface

*dot1xMsgTask: Oct 20 12:28:27.085: %DOT1X-3-MAX_EAP_RETRIES: 1x_auth_pae.c:3136 Max EAP identity request retries (3) exceeded for client c4:85:08:03:71:e0
*dot1xMsgTask: Oct 20 12:27:12.285: %DOT1X-3-MAX_EAP_RETRIES: 1x_auth_pae.c:3136 Max EAP identity request retries (3) exceeded for client 8c:70:5a:22:fe:80
*dot1xMsgTask: Oct 20 12:27:10.685: %DOT1X-3-MAX_EAP_RETRIES: 1x_auth_pae.c:3136 Max EAP identity request retries (3) exceeded for client c4:85:08:01:fe:cd
*dot1xMsgTask: Oct 20 12:26:35.685: %DOT1X-3-MAX_EAP_RETRIES: 1x_auth_pae.c:3136 Max EAP identity request retries (3) exceeded for client 10:0b:a9:e7:0d:48
*dot1xMsgTask: Oct 20 12:25:33.685: %DOT1X-3-MAX_EAP_RETRIES: 1x_auth_pae.c:3136 Max EAP identity request retries (3) exceeded for client c4:85:08:02:ce:11
*dot1xMsgTask: Oct 20 12:24:54.285: %DOT1X-3-MAX_EAP_RETRIES: 1x_auth_pae.c:3136 Max EAP identity request retries (3) exceeded for client c4:85:08:01:fe:cd
*dot1xMsgTask: Oct 20 12:24:42.285: %DOT1X-3-MAX_EAP_RETRIES: 1x_auth_pae.c:3136 Max EAP identity request retries (3) exceeded for client 44:6d:57:7a:92:39
 

Any suggestions as to what is going on here?

Kind Regards

3 REPLIES
VIP Purple

What version of software

What version of software running on your 5508 ? Does this occur to all clients or only for particular clients. Here is the explanation of this error message

Also check  what value configured under "Security ->User login policies -> " set to be 0 for unlimited

http://www.cisco.com/c/en/us/td/docs/wireless/controller/8-0/message/guide/sysmsg80/dot1d_dot1q_dot1x_dot3ad_msgs8.html#pgfId-1008749

Error Message %DOT1X-3-MAX_EAP_RETRIES: Max EAP identity request retries ([int]) exceeded for client [hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation Client authentication failed because the maximum number of permitted attempts was exceeded.

Recommended Action Ensure that user credentials are correct on the client and on the AAA server.

 

HTH

Rasika

*** Pls rate all useful responses ****

New Member

Hi,Thank you for your reply,

Hi,

Thank you for your reply, our software version is 7.2.110.0. Our User Policy is already set to be '0'.

I have been experimenting with one of our effected wireless networks and I have found the issue returns if we start using WPA2 AES Encryption with RADIUS authentication. We have also noticed that when using WPA2 AES Policies on another SSID that uses PSK Authentication Apple Devices are unable to connect to the network, but some Android Devices are.

 

Bronze

Hi,Please the same posthttps:

Hi,

Please the same post

https://supportforums.cisco.com/discussion/11092351/wlc-5508-problem

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