2702 reset by controller 5508 for unknown failure reason

[chung689]

Hi all,

I have around 50 2702 APs joined to a WLC5508, however, some of the APs are occasionally reset by controller. One of the APs reboots more frequently than other APs for around 3-4 times a week. The controller software version is 8.3.133.0 and the APs IOS version is 15.3(3)JD11$, no software upgrade has been done recently.  The AP connection failure shows "The AP has been reset by the controller" and the AP disconnect reason is "unknown failure reason". This AP has around 50 clients associated. Does the reboot caused by high loading or other reasons ?  Has anyone encountered this issue ? Thanks.

[Leo Laohoo]

Remote into the AP and post the complete output to the command "dir".

[chung689]

Hi Leo, thanks for your reply, the "dir" output is as followed. FYI reference the ap was reset today at around 9am (GMT+8) and joined WLC at 09:03:49.499 (GMT +8)

AP1#dir
Directory of flash:/

2 -rwx 145 Oct 3 2019 01:03:50 +00:00 capwap-saved-config
3 -rwx 54997 Nov 4 2017 04:52:40 +00:00 event.log
4 -rwx 0 Mar 1 1993 00:00:35 +00:00 config.txt
5 drwx 576 Jan 5 2018 10:03:16 +00:00 configs
38 drwx 576 Jan 1 1970 00:12:12 +00:00 ap3g2-rcvk9w8-mx
90 drwx 2496 Nov 4 2017 04:52:11 +00:00 ap3g2-k9w8-mx.153-3.JD11
15 -rwx 12312 Oct 3 2019 01:08:49 +00:00 private-multiple-fs
75 -rwx 64 Nov 4 2017 04:52:33 +00:00 sensord_CSPRNG0
76 -rwx 61044 Oct 3 2019 07:08:06 +00:00 lwapp_non_apspecific_reap.cfg
80 -rwx 280 Oct 3 2019 01:03:51 +00:00 lwapp_officeextend.cfg
82 -rwx 62977 Jun 4 2019 09:40:32 +00:00 event.capwap
8 -rwx 145 Oct 3 2019 01:08:50 +00:00 capwap-saved-config-bak
84 -rwx 64 Nov 4 2017 04:52:33 +00:00 sensord_CSPRNG1
11 -rwx 99 Oct 3 2019 01:04:00 +00:00 pnp-saved-config
18 -rwx 0 Sep 30 2019 04:08:30 +00:00 ce
88 -rwx 132203 Sep 23 2019 05:20:51 +00:00 event.r1
7 -rwx 95008 Oct 3 2019 01:04:24 +00:00 lwapp_reap.cfg
14 -rwx 136290 Sep 6 2019 05:02:35 +00:00 event.r0
17 -rwx 95008 Oct 2 2019 14:13:55 +00:00 lwapp_reap.cfg.bak
19 -rwx 358 Oct 3 2019 01:03:49 +00:00 env_vars

40900608 bytes total (17682432 bytes free)

[Leo Laohoo]

Post the complete output to the AP command of "sh version".
If the AP is connected to a Cisco Catalyst switch, post the complete output to the command "sh interface <PORT> controll".

[chung689]

Please refer to the attached txt file "show version" and "show interface controller output", thanks

[Leo Laohoo]

The outputs tell me the AP keeps losing power. I don't see any signs of the AP crashing.
Can you plug the AP directly into the switch and see if this behaviour persist?