topic Re: WLC Rebooting issue in Wireless

WLC Rebooting issue

Shaqib Lallmamode — Tue, 05 Apr 2022 08:50:10 GMT

Hello,

I have a WLC 2504 loaded with firmware 8.5 and 14 APs connected to it.

The WLC randomly reboots daily at no specific intervals.

***IoStats Summary***

Linux 2.6.21_mvlcge500-octeon-mips64_octeon_v2_be (localhost) 04/05/22

avg-cpu: %user %nice %system %iowait %steal %idle

0.42 0.03 0.18 0.00 0.00 99.37

Device: tps MB_read/s MB_wrtn/s MB_read MB_wrtn

sda 0.01 0.00 0.00 8 23

***IoStats Detail***

Linux 2.6.21_mvlcge500-octeon-mips64_octeon_v2_be (localhost) 04/05/22

avg-cpu: %user %nice %system %iowait %steal %idle

0.42 0.03 0.18 0.00 0.00 99.37

Device: rrqm/s wrqm/s r/s w/s rMB/s wMB/s avgrq-sz avgqu-sz await svctm %util

sda 0.04 0.06 0.01 0.00 0.00 0.00 62.52 0.00 449.04 11.63 0.01

Regards,

Shaqib

Re: WLC Rebooting issue

Leo Laohoo — Tue, 05 Apr 2022 09:31:59 GMT

Post the complete output to the command "sh coredump summary" and "sh sysinfo".

Re: WLC Rebooting issue

Shaqib Lallmamode — Tue, 05 Apr 2022 09:38:48 GMT

(Cisco Controller) >show sysinfo

Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 8.3.121.0
Bootloader Version............................... 1.0.20
Field Recovery Image Version..................... 7.6.101.1
Firmware Version................................. PIC 20.0

OUI File Update Time............................. Sun Sep 07 10:44:07 IST 2014

Build Type....................................... DATA + WPS

System Name...................................... WLC1
System Location.................................. Server Room First Floor
System Contact...................................
System ObjectID.................................. 1.3.6.1.4.1.9.1.1279
IP Address....................................... 192.224.249.200
IPv6 Address..................................... ::
Last Reset....................................... Power on reset
System Up Time................................... 1 days 3 hrs 49 mins 1 secs
System Timezone Location......................... (GMT +4:00) Muscat, Abu Dhabi

--More-- or (q)uit
System Stats Realtime Interval................... 5
System Stats Normal Interval..................... 180

Configured Country............................... AE - United Arab Emirates
Operating Environment............................ Commercial (0 to 40 C)
Internal Temp Alarm Limits....................... 0 to 65 C
Internal Temperature............................. +32 C
External Temperature............................. +37 C
Fan Status....................................... 3800 rpm

State of 802.11b Network......................... Enabled
State of 802.11a Network......................... Enabled
Number of WLANs.................................. 3
Number of Active Clients......................... 146

OUI Classification Failure Count................. 7098

Burned-in MAC Address............................ F8:A5:C5:84:54:A0
Maximum number of APs supported.................. 75
System Nas-Id....................................
WLC MIC Certificate Types........................ SHA1/SHA2

(Cisco Controller) >show coredump summary

Core Dump upload is enabled

FTP Server IP.................................... 172.16.30.2
FTP Filename..................................... wlc2504.txt
FTP Username..................................... root
FTP Password.....................................

Re: WLC Rebooting issue

balaji.bandi — Tue, 05 Apr 2022 09:48:45 GMT

in the OP you mentioned running 8.5 code : but below output show different : Do you have both the images in the device ?

Product Version.................................. 8.3.121.0

Re: WLC Rebooting issue

Leo Laohoo — Tue, 05 Apr 2022 09:56:30 GMT

@Shaqib Lallmamode wrote:

Last Reset....................................... Power on reset

Here's the reason why the WLC keeps reboot -- Unstable power source.

Re: WLC Rebooting issue

Shaqib Lallmamode — Tue, 05 Apr 2022 10:14:13 GMT

Yes, sorry it is the same WLC.

Thanks, will try to change the power adaptor.

Re: WLC Rebooting issue

Leo Laohoo — Tue, 05 Apr 2022 10:18:00 GMT

@Shaqib Lallmamode wrote:

Thanks, will try to change the power adaptor.

Wut?

That is not what I said.

Investigate the power outlet the power supply is drawing power from or put the power supply behind a UPS.

Re: WLC Rebooting issue

Shaqib Lallmamode — Tue, 05 Apr 2022 12:07:30 GMT

The device is already behind a clean power UPS in our Server room.
There are already various device on the same DPU.

Re: WLC Rebooting issue

Mark Elsen — Tue, 05 Apr 2022 12:26:29 GMT

- Configure a syslog server, to send logs too, follow up on operational logs being reported during (still) normal times , sometimes indicators can be found as to why the device reboots in the end or after a while.

Re: WLC Rebooting issue

Rich R — Tue, 05 Apr 2022 16:05:47 GMT

A hardware fault could also show as "Power on reset" so you might find you need to replace the hardware.

Rarely even a software fault could show that.

You AireOS version is very old - consider upgrade depending on whether your APs are supported.

https://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/compatibility-matrix.html#ctr-ap_support

https://www.cisco.com/c/en/us/support/docs/wireless/wireless-lan-controller-software/200046-tac-recommended-aireos.html#anc10