Cisco WLC 2504 High Latency after some time

[Mikhail Barabanov]

Hi everyone.

In our office we have a problem with Cisco WLC 2504 and 5 Cisco AIR-CAP2602. Everything works very good for some time, but after half an hour after connection starting problems - speed going down, and latency became very high, also wi-fi indicator in Windows showing a low signal. After reconnecting everything is ok. Cant understand what happening. There are 75 clients in office, load balancing etc is off. We didnt make anything special with config, just create wlan.

Thanks for any help.

[Rasika Nayanajith]

What is the software version running on your 2504 ?

Rasika

[Mikhail Barabanov]

Software version is 7.4.110.0

[Rasika Nayanajith]

I would upgrade it to 7.4.121.0 code. Here is the release note for that code

http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/crn74mr02.html

Also upgrade your FUS image to 1.9.0.0. Note that this will take 30-40min & get enough downtime for  the change. Also do it via CLI.

http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/fus_rn_OL-31390-01.html

Let's monitor after these upgrades you could see the same behavior.

HTH

Rasika

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[Mikhail Barabanov]

Thanks for answer!

I've planned to update sofware on weekend, thought there could be something to fix problem without upgrading.

I'll write about results after it.