What WLC software version you are running ? This is more likely a bug of the software code you are running. If you are in 7.4.x. go for 22.214.171.124 which is more stable.
We had a similar issue with 3600 AP on 7.4.100.x software. Here is that bug information CSCug46718. We fixed it by upgrading WLC software
"Most 802.11 client 2.4GHz authentications will stop after a period of time causing clients to roam to further AP’s, or possibly no longer see the SSID from the AP. However, connectivity to certain clients may remain unaffected"
Conditions: Only occurs on 2.4GHz band radio with CleanAir capable APs (Cisco Aironet 2600, 3500, and 3600 series Access Points) with software release version 7-4-100-0 or 7-4-100-60
Workaround: - Disable ‘CleanAir’ feature on WLC to prevent the condition from occurring - Reboot AP to recover an affected AP from the condition
The problem the bug you link to is descriping correlate pretty good with what users say they experience. That they get a big downshift in datarate now and then. Which could mean they roam to a AP further away.
But the hardware and software we have dont match the ones that is effected by the bug.
I will look further in the bug tool and check client stats.
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...
This is the start of a display filter cross reference between Wireshark and OmniPeek.
The 1st installment is a table of advanced filters. More filters will be added as time allows.
It is a living doc, so check back for changes every so often
Please feel ...
I have created a Powershell script to automatically add a Wireless Guest User on Cisco WLCs. (tested on 2500 Series)
The script should be completely self explanatory.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...