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Beginner

WLC Makes Makes Loud Noise Time to Time

Have brand new WLC and it makes loud noise time to time, 

 

software version:8.3.143

Fan RPM rates are normal

 

went to similar threads and a common fix was to change fan policy - performance

but unable to do so because it shows cisco fan policy override - card(s) cavium present

 

please advise 

 

7 REPLIES 7
VIP Mentor

Re: WLC Makes Makes Loud Noise Time to Time

If your AP support 8.5.140.0 code I would upgrade to that & see.

https://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/compatibility-matrix.html#56735 

 

HTH

Rasika

Beginner

Re: WLC Makes Makes Loud Noise Time to Time

thanks and we have AIR-AP2802I-E-K9, checked the download site

 

8.5.140 has been deferred 

 

the recommended one is Release 8.5.151.0 but I do not find it on the matrix

 
Everyone's tags (1)
Hall of Fame Community Legend

Re: WLC Makes Makes Loud Noise Time to Time

"brand new WLC"? What is the model?
Beginner

Re: WLC Makes Makes Loud Noise Time to Time

it is a 5520

Hall of Fame Master

Re: WLC Makes Makes Loud Noise Time to Time

The 5520 is loud when it boots up, but not much loader when running normal. The fan does spin up here and there, but again, that is normal.
-Scott
*** Please rate helpful posts ***
Hall of Fame Community Legend

Re: WLC Makes Makes Loud Noise Time to Time

Does the WLC sound like a Hoover vacuum cleaner?
If it does, then it's normal. The controller, after all, is a UCS server.
Beginner

Re: WLC Makes Makes Loud Noise Time to Time

yes, it sounds like a Hoover vacuum cleaner

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