Cisco 2504 Lan Controller Random Reboots

Salonge
Salonge used Ask the Experts™
on
This problem started about a week ago with 1 of my 15 Wireless Lan Controllers.  There are no errors and the controller just reboots itself.  I have monitored it this morning and it has restarted no less than 5 times in an hour.  Does anyone have any ideas why this would randomly start happening.  It comes back with no problems or errors.  Stays up for about 15 minutes and goes back down.  I have checked all the connections, but site is 2.5 hours away so I want to make sure I have a decent idea of a fix before we drive there.  We have had these in for about 4 years without any issues.  Never had an issue with this.  The software version is 7.0.220.0.
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Panagiotis ToumpaniarisSystem Architect

Commented:
Hello,

Have you seen anything in sysinfo, such as high temp?

The most probable, if nothing changes in the setup, is hardware failure, and the most probable in that is either the fan or the power supply.

The fan status can be seen in sysinfo, the power supply can be changed for another one (since you have 14 other that are certainly working properly).

These are the most probable causes in my opinion.
Salonge

Author

Commented:
Thank you.  Where is sysinfo?
Panagiotis ToumpaniarisSystem Architect

Commented:
In cli it should be something like "sh sysinfo"
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Salonge

Author

Commented:
I am using the GUI version.  Can I access it from there?
Panagiotis ToumpaniarisSystem Architect

Commented:
I don't think so, though I have never really used the gui..
Salonge
Commented:
Okay.  I looked in the Sysinfo file and see nothing out of the ordinary.  The Fan status is fine as well as the internal and external temperature.  So I guess I will try a new power cord.
Panagiotis ToumpaniarisSystem Architect

Commented:
That's the next most probable fault.
Salonge

Author

Commented:
We are going to swap out the power supply and see if that works.  I will let you know.

Thanks
Commented:
Hello,

I had the same issue with my WLC. It was plugged in into a UPS and when the batteries on the UPS began to fail my controller was restarting a few times a day. This also explains the no errors part. I hope that helps.

Thank You
Salonge

Author

Commented:
Thank you.  That is a thought.  I will check.
Craig Beck
Top Expert 2014

Commented:
I'd get off 7.0.220.0 and install 7.0.250.0 at least.
Salonge

Author

Commented:
The UPS had a bad battery.  User plugged the device into another outlet and it has been up for over 20 hours
Svet Chinkov

Commented:
Happy I was able to help.

Thanks

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