02-01-2015 09:54 PM - edited 07-05-2021 02:23 AM
Hi,
I have very strange issue with my wireless Lan controller. It reboots automatically.
Atleast in week, it restarts once or twice.
If i want to check any historical logs , i can not check since after restarting WLC , all logs will be cleared,
I get the logs from the time it restarts , starting with
COLD STARTS :
I am predicting the issue with temperature setting
right now the Internal temperature is +41 C
How do i check , what is the threshold set for temperature.
can anybody suggest me anything about this ?
Cisco Controller Product Version: 8.0.110.0
Kindly suggest how to resolve this issue
02-01-2015 11:56 PM
right now the Internal temperature is +41 C How do i check , what is the threshold set for temperature.
This is nothing.
Can you post the output to the command "sh sysinfo"?
When the restart happens, do you have a time? Have you checked the source of your power?
02-02-2015 01:22 AM
Leo@ Yes i checked but the power issue is not there.
"sh sysinfo"
Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 8.0.110.0
Bootloader Version............................... 1.0.20
Field Recovery Image Version..................... 7.6.95.16
Firmware Version................................. FPGA 1.7, Env 1.8, USB console 2.2
Build Type....................................... DATA + WPS + LDPE
System Name...................................... -WLC
System Location..................................
System Contact...................................
Redundancy Mode.................................. Disabled
IP Address....................................... x.x
IPv6 Address..................................... ::
Last Reset....................................... Power on reset
System Up Time................................... 0 days 0 hrs 46 mins 50 secs
System Timezone Location.........................
System Stats Realtime Interval................... 5
System Stats Normal Interval..................... 180
--More-- or (q)uit
Operating Environment............................ Commercial (0 to 40 C)
Internal Temp Alarm Limits....................... 0 to 65 C
Internal Temperature............................. +41 C
External Temperature............................. +27 C
Fan Status....................................... OK
State of 802.11b Network......................... Enabled
State of 802.11a Network......................... Enabled
Number of WLANs.................................. 2
Number of Active Clients......................... 0
Power Supply 1................................... Present, OK
Power Supply 2................................... Absent
Maximum number of APs supported.................. 500
System Nas-Id.................................... WLC
WLC MIC Certificate Types........................ SHA1/SHA2
02-02-2015 01:22 AM
Last Reset....................................... Power on reset
If this was a hardware/software issue, the message would be different.
Can you ensure the power supply and the power cord are secure? Here's a nice thing to try: Power up the WLC with a different power source, like UPS or from a different power feed, and see if the WLC still resets.
02-03-2015 05:09 AM
LEo@ WLC is not reachable ,there is no power issue
currently WLC is connected to switch, but the switch interface is showing up, neighbourship is showing none. unable to reach wlc via web and telnet.
if i connect wlc to other power source or manual reboot its will be start working fine.is there anyway to find out issue.
02-03-2015 12:54 PM
Go to Management > Tech Support > Controller Crash.
What information do you have there?
02-03-2015 08:23 PM
its only shows that
***** End of Crash File dump *****
02-03-2015 08:27 PM
Ok, this means the WLC didn't "crash".
Use this thread and raise a TAC Case. You could be potentially be looking at a faulty/failing PS or the appliance needs to be checked out.
06-01-2017 11:16 PM
Good Day Guys,
I am currently experiencing the same problem with my 5508, it reboots randomly and I have already upgraded the IOS to 8.2.151 and it still persists. We have changed power feeds as the reason returned for the reload was power. We are now going to RMA the device as we currently have over 3000 users.
Has anybody found a fix to their issue?
Thanks
06-02-2017 12:49 AM
Sandesh,
This is a very, very old thread.
Can you please create a new thread?
06-02-2017 06:19 AM
Our fix appeared to be a bad power supply. We took one of them out and have not had the issue any longer.
06-02-2017 07:21 AM
You should move into another version, we have been running 8.3.112.0 and no issues at all but we recently found we are hitting a RRM/DCA bug so we are expecting to install very soon 8.3.121.0 which has the fix. We have more than 80K users on 12+ WLC's.
BTW, I forgot to mention that 8.3.x.x does not work properly using IE for GUI Access/Mgmt
02-03-2015 07:38 AM
What version of iOS were on you previously? A few weeks back we were on 7.6.120, upgraded to 8.0.110 and eventually went down to 7.6.130 after seeing controller instability. We opened a TAC case on it, ran some console monitoring, but were never able to grab crash details on the 8.0.110 branch.
Since running 7.6.130 we have been solid.
02-02-2015 02:01 AM
LEO@ let me observe and update you.
02-27-2015 10:21 AM
after sysinfo
Also Be concern regarding the cooling system your using for the WLC ,because this behaviors normally occur because of overheating.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide